5 SKINCARE ACIDS | How to use, recommended brands, explained by dermatologist

/ drdavinlim
For more information on skin care tips & hacks, together with product reviews, & recommendations
Skin acids are a group of molecules that can help a myriad of skin conditions.
ALPHA hydroxy acids
AHAs include lactic acid, glycolic acid, mandelic & citric acid. Glycolic acid is derived from sugarcane, lactic acid can be found in sour milk (oldest peel), whilst citric acid is derived from fruits; hence the blanket name of ‘fruit peels’. (For those who love organic skin care)
Uses: Glycolic acid can be useful in the management of acne, blackheads, whiteheads. BHA are better as salicylic acid is both anti-inflammatory and oil soluble. AHAs can be useful in the management of sun damage, wrinkles, pigmentation & as a primer to aid delivery of other acids, & actives like retinol- retinoids.
Concentrations: 2-30%, creams, gels, lotions, washes. Start slow, increase as tolerated.
Careful: If you have rosacea, sensitive skin, dermatitis
Azelaic acid
This is an organic acid found in wheat, barley and rye, however this acid is manufactured in a lab environment
Works by 1.Killing bacteria 2. Keratolytic 3. Reduces pigmentation - tyrosinase inhibitor 4. Anti-inflammatory
Uses - Acne, rosacea, pigmentation.
Concentrations: Typically 5-15/20%. Concentrations less than 15% are less irritating cf higher concentrations.
Careful: High concentrations. Most benign acid to use. Good for inflamed skin, acne in pregnancy, mild rosacea, some forms of pigmentation (melasma).
Ascorbic acid
Also known as Vitamin C. pH 2.5-3.5 for highest bioavailability. Potential to cause skin irritation in higher concentrations.
Works by
Antioxidants reduce UV induced DNA damage. Free radical scavenger
Anti-pigment works as a tyrosinase inhibitor
Stimulation of fibroblasts to produce dermal collagen
Caution: Sensitive skin, rosacea. For patients who have this skin type, start at 10% and SLOWLY increase as tolerated.
Retinoid acid
Vitamin A derivative. Arguably the most beneficial skin care active as prescribed by physicians & dermatologists.
Works by 1.Decreasing sebum or oil 2.Anti-inflammatory 3.Anti -bacterial 4. Helps normalize skin shedding 5.Reduces wrinkles by stimulating collagen production.
Caution: sensitive skin, titrate accordingly.
How to start? Retinol over retinoids unless prescribed by your doctor. Typical retinol concentrations range from 0.5 to 2.0%.
Kojic Acid
Is widely used in Asia to improve skin clarity, by reducing pigmentation. This acid is a naturally occurring compound derived from #fungus. (Obviously purified so don't worry, your face won’t be taken over by fungi).
Mode of action: Tyrosinase inhibitor, decreasing #melanin production.
Clinical application: Melasma, post inflammatory hyperpigmentation, brown sunspots.
Best applied: At night. If tolerated twice a day. As with all prescription skin care, start slowly, increase as tolerated.
How to use: Best compounded by a pharmacist and prescribed by a dermatologist. Ideally Kojic acid works best with combination therapy.
Caution: Kojic acid has a high sensitizing potential and hence used in caution in patients with sensitive skin, or inflammatory skin conditions such as #eczema, and seb #dermatitis
More on my Instagram account @drdavinlim
Dr Davin Lim
Dermatologist, Brisbane.
Australia
Disclaimer: I am a procedural dermatologist, my work consists of surgery, injections, lasers & scary peels- procedures. Skin care advice is given as a general maintenance post procedure or in the context of treating conditions whereby topicals are indicated- example melasma. For topical monotherapy, consider seeing a general practitioner or general dermatologist.

[@annacaratiny6019]

Watching this channel feels like getting a free derma consultation while in quarantine. Thank you, doctor!

[@Xo_xi]

Chicken is Destiny He’s doing a service to the society! I think people should rely on dermatologists more than blindly following other people’s skin care routines with over expensive skin care products! Thank you Dr.Lin.

[@fayecovarrubias]

@@Xo_xi yes yes definetely a lot of learnings to apply on my channel

[@komatsusakura]

been following him for so long . Once you watch enough if a dr try to sell you things un necesaary you know how to say no and walk away .

[@denyseperry6160]

Chicken is Destiny I agree he is great. I have been watching him for a couple of years and with his advice improved my skin immeasurably. I am 66 and I like to think I have good skin but Davin’s advice really up my game. Also I’ve not spent a fortune🥰

[@brunoduncan2381]

instaBlaster

[@ryeofoatmeal]

no matter what brands, i still stick to the ordinary cos the price is very affordable. and no bs ingredients, as well as fragrance free!

[@komatsusakura]

same . The inkey and timeless

[@peachy7586]

Also vegan and cruelty free!!! Yayyy! I'm not a vegan but i think as it's 2021 the cosmetics should be vegan and no doubt cruelty free.

[@Mnjvm]

Cool choice. 4years ago, I used Neostrata 15 also 20, couples of bottles done and the results was bullshit. Since then I stay away from that brand, waste of money and fancy for nothing.

[@taranullius9221]

Yeah I tend to stick to TO because I know across the board they're fragrance free and cruelty free. I used to pick through Revolution's serums (copied heavily from TO) and get some of them but some of theirs have fragrance so it's just easier...plus TO has a $30 free shipping limit which is amazing. I gotta spend $50 to get free shipping from major Australian places like Priceline or Chemist Warehouse.

[@taranullius9221]

That and Paula's Choice and QV are my two other staple brands. FF and CF.

[@lilkitti13]

Kojie San is a Filipino brand. It’s as Japanese as Olive Garden is Italian.

[@aineafaison50]

Yea I’m

[@TheMehar444]

My mum suffered from pigmentation all her life and was not aware that there was a simple drug store trick to get rid of it. Thanks to Dr Davin's by mum's pigmentation has significantly reduced after watching his videos on pigmentation. She feels so much more confident and beautiful! Thank you sooo muchhh Dr Davin! You have no idea how much of an impact you have made, and continue to make!

[@neferuaten3954]

I'm a tech person but your channel makes me wish I went to study dermatology xd If my highschool chemistry profs were only 10% this good at teaching ...

[@JBK-fs4px]

Would you consider doing a full AM/PM routine? Using both expensive and drug store products.

[@joansmith6844]

Jaina Ahuja agreed ☝️

[@lisah4425]

Yes, please!

[@SF-cn9sq]

From the Ordinary: AM peptides and Vit B; PM Vit C & A. Vit B and C together not advised, as Vit B may neutralize Vit C...this is what I was told. Any confirmation is welcome :)

[@joansmith6844]

S F I question the vit c & b together

[@SF-cn9sq]

@@joansmith6844 Yes, I was in fact told to avoid them together.

[@sophisticatedwrat]

if you've got dry acne-prone skin and struggle with acne scarring mandelic acid works wonders. My skin always looks so much better after using it and I can even notice the difference in my skin after a few hours.

[@jojomakes]

I can definitely agree. I've been using the one from the Ordinary and have had really great results so far

[@HS-hi6wc]

Could we see an update on your routine and procedures you use for yourself and a close up if you're comfortable sharing on what your skin concerns were and how you dealt with them. I have always visited your channel from time to time and can relate to it especially because of the skin concerns you've shared of those with brown skin or asian skin tones.

[@p3tr02oo6]

The negative side of glycolic acid is that it makes de skin more sensitive to the sun, more exactly to the UVB rays. In other words, it can increase the amount of sun damage from UVB rays if you dont use sunscreen like a vampir around 1g 3 times per day. Instead of AHA i prefer to use PHA, you can use it everyday, day and night and even under retinol or ascorbic acid or other anti age ingredients.

[@feliciashygirl]

Hello Dr davin, can you speak on zinc and its relation to the skin. Really love your videos, very good information.

[@kimgarrison2904]

I'm a new subscriber and am binge watching as many of your videos as I possibly can. I love the fact that you address issues other dermatologists don't, because you know the public is either doing them (needling) or confused about products, who needs what, etc. So glad I found you and thanks so much for the information.

[@Lucesmoira]

Hi Dr Great stuff you teach ! Please talk about copper peptides.

[@heathmeizer9446]

Thank you for sharing this knowledge. I appreciate your knowledge and honesty. Definitely my go to place for information. Keep safe and well. 🙏🤗🇦🇺

[@minyhutchins540]

Timeless has a fabulous vitamin C serum at $25 for 1 oz bottle.

[@IcemagicAJ1]

How is it? I heard people say its similar to maolove’s vitamin c

[@chelseazaydaraensehon1198]

Colornotez Clove id like to know which one to buy.

[@angiegardner8811]

In what line order is the vitamin C (?)

[@josephinetan7627]

I Use my kojic San soap in my evening Routine with Ascorbic acid from ordinary and I honestly thing it’s works on me.

[@MrBlondie1293]

Hi Dr. Lim! Loving the videos- they've been great viewings for bumping up my skincare game! Could I please ask if you might be amenable to doing a video on creating a video on skincare routines that incorporate acids and retinol please? Dos and don'ts, best efficacy practice, etc.? Would love to hear from a qualified dermatologist! Thanks so much for the content! 😊

[@emma.l]

Hi Dr Lim, I'm wondering if you could make a video with what to expect at a dermatologist consultation. I had an appointment and was disappointed so I would love to hear what a good consultation is supposed to be like

[@RO9TOR]

The brand Advance Skin Care makes C + E Ferulic 15%, 2.0 oz for $44 a more affordable option and the formula is the same as Skinceuticals 1.6 oz $150. It will last you for a long time. You will not be disappointed. I get it from amazon.

[@rockingthechange]

I use this too. I actually buy it off eBay. I absolutely love it. Just ordered my third bottle.

[@RO9TOR]

Embracing OMAD it is really good!!! I’m glad it works for you as well.

[@emilyw.3746]

Kojie San is actually a product from the Philippines. And honestly, I have doubts about their products. About a week ago I bought their soap, but that'll be the last, especially after watching this video. I've just ordered Garden of Wisdom's Alpha Arbutin 2% + Kojic Acid 1% and I can't wait till it arrive!

[@Veronica-tn2xc]

Girl don't buy this products from such countries.

[@RockeyToes]

Love the educational video! Thanks so much! I use retin A at night and have taken to using polyhydroxy acids a few times a week. They are a great yet gentle addition to my routine without over-exfoliating.

[@vanessamonliv7754]

Hey Dr Davin! You are so nice!! What do you think about Hada Labo? I will probably buy their brightening lotion...

[@gangashankar6048]

1, informative for common person 2. simple and clear. 3. information types and written down for us 5. for other doctors and cosmetologist also its important information

[@WaitingForTheSubway]

Would love to hear some possible full skincare routines from you. How do we use all these acids safely? I usually use SOME kind of acid 1-2 times per day. And in addition, I use .1% tretinoin every night. I still have acne, and I also think I’ve over-exfoliated because I can cause very dry and red patches, especially around my mouth and nose. But when I lighten up on the glycolic, my acne gets worse. I tried to swap out the glycolic half the week with lactic or a PHA toner, but again- it makes my acne worse. Thanks for all your expertise!

[@Naxyy80]

Thank you so much for this information! I’m new to acids and was a little lost when finding the right ones for me... you’re going to make us all beautiful

[@darkbloom9218]

This truly added to my homework in learning about acids so I can choose products and be careful to my skin in treating my dark spots and acne. Thank you so much, Doc Davin! 😊

[@aurorasage7305]

Thank you for clarifying the mind field out there.. now that so many of these are available and just choosing is OVERWHELMING .. a brilliant vlog ... Ill be tuning in again.. from an ex-pat Australian

[@lalithasharma9946]

Sir what's that product ordinary plus? U put up the thumbnail.. I have never seen it link please..

[@amber-alexislamanna2332]

Me either? Caught my attention!!

[@jok3683]

theordinary.deciem.com/product/rdn-mandelic-acid-10pct-ha-30ml?redir=1

[@brookspa94]

As always, outstanding educational video/info. You’re a GREAT teacher! THANK YOU for sharing your precious time, research, & knowledge with us all! Hugs & Blessings 2U😊

[@WhatTheHellRachelle]

Would you consider addressing lactic acid? Thank you! I have really been enjoying your content over the past few years!

[@freekarella3024]

Thank you. This was so informative. Im really just starting to learn about skincare and this helped me so much. I even took notes.

[@MyLoVeLyMaN]

I was expecting something on salicylic! Great video thanks!

[@johnmg95]

Kojie San is a Filipino brand, not Japanese but the brand logo is a Japanese woman. The soap doesn’t work that great for pigmentation but it does lighten and brighten the skin. It’s great for acne-prone oily skin actually.

[@jevousemmerde1]

Hi Doctor, this is Christine from France. I love your videos and recommendations, which are really helpful. You are miles above my French dermatologist !! Which acid would you recommend for an aging, sagging and oversensitive skin. I am sixty now and would like to keep a fresh appearance, but the years are taking their toll... A simple AM and PM routine would be deeply appreciated !! Thanks !

[@suzannetalbert8799]

Christine Carre do you ever watch “Hot and Flashy” channel? She has excellent advice too for over 50

[@xavierbax1929]

Thank you sooo much Dr. Davin... I'm a med student with a passion for the dermatology science, please could you do a video explaining how do you approach a atrophic acne scars, specifically the invasive method to get rid of them ( I saw one of your videos where you were using a neddle kind instrument under the patient skin , but I never fully understanded lol) Sorry for my english, I'm from South America.

[@MrNobody1955]

Hi Doc from Vietnam , I have been watching your videos for years . I love all of your videos . May I ask , can I use azelic acid with tretinol ?

[@Maaatsi]

Ordinary Plus??? What am I missing? Never heard of it

[@drisshansfreetime453]

Maaatsi same here. Haha

[@tamiaw876]

I just wanna know where I can get it

[@nireekshana9131]

Ya even me

[@rotem1437]

ֱֱֱSAME!!!

[@thebeautyloftpt]

Same I use the ordinary, never heard of ordinary plus

[@LanaKir]

56 and varicose veins on my nose. I love a warm washcloth for washing my face but might else cause this? Love these skin care videos ! So informative for this Canuck :)

[@sharroon7574]

Are you sure they are varicose veins? That seems a little strange, most peoole have dilated capillaries on their face if anything.

[@sabrinam1969]

Hello Dr Lim, Thank you for all your videos they are great! I have one question regarding body acne, KP and enlarged blocked pores on entire body. Dr, is it possible and beneficial to apply the double cleanse method using a all over cleansing oil that emulsifies to help clear clogged pores on the body? Also, is it safe and beneficial to add crushed aspirin ( salicylic acid) to a body wash/shower gel to gain a better skin texture and exfoliate? (cant afford expensive treatments) If not ,what about using aspirin mixed into a paste to form a body scrub? Lots of questions I know. Thank you for your time. Stay Safe

[@samr5816]

Kojie San is a Philippines brand not Japanese. And Kojic Acid 5% is available in Sesderma's Kojicol Plus (contains azealaic acid) and for azelaic acid I really like Egopharm's Azclear Lotion (20% azelaic acid)

[@tinajames2940]

I use Retin A .5 nightly with no issues for the last 8 months and have subscription boxes so have tried a lot of skincare over the last 18 months. I have fair skin but not sensitive skin. Never had an issue with any products which is why I was surprised when The Ordinary AHA peeling solution a few weeks ago that made me peel like a snake for weeks. Then I tried The Ordinary vitamin C which broke my skin out with an acne like rash all over that has taken almost two weeks to fade and it’s still not completely healed. But they were more like water blisters than acne. I’ve learned my non reactive skin can react! I might add I am in my 50s and my skin has always been a bit dry.

[@raizashearer2222]

Very informative💪🏼❤️ Can I use retinol serum Tuesdays and Fridays .. also glycolic acid on Sundays? If I do that, can I use vit c serum every day/BID?

[@sandrarovira3034]

Thank you Dr Lim so far I have followed your instructions and I can see improvements on my melasma except for x2 spots that are big as my little finger print. But I'll keep doing it it's been a month in lock down and thought I'd concentrate on my skin. Thank you once again

[@Amandakevric]

Sandra Rovira can you tell me what products you’ve been using?

[@melissajames]

What products would you recommend for Keratosis Pillaris?? 🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼

[@mrsmileva5337]

Wow, that was the most informative video I've ever seen on this topic. You just got a new subscriber Doc. 😉👍🇨🇦

[@abeach5420]

👍🤗👏😁👌🙌 Thank 'you' so very much for your continued and genuine care in sharing such important information.

[@carolinecarolina]

Dr. Lim, love your videos, I’m a big fan! Always so enlightening💗

[@almiraalmira1451]

I have milia under my eyes, what products do you recommend to use? thank you!

[@aijhai17]

Hi, Doc. :) Am I using too many actives if I use TO Hyaluronic Acid and TO niacinamide serums together with Some by Mi AHA, BHA, PHA moisturizer in PM routine?

[@Yegus1216]

Acids are always confusing, thanks for this video it helps a lot! What acid do you recommend for a mature very dry skin with few break out - glycolic or lactic acid?

[@amandasawyer4784]

Thank you for such an informative video, I found it really interesting. Would you consider doing a video on your thoughts of Alpha Lipoic Acid please.

[@itsjazlyn156]

Love these! My favorite channel on KZbin by far thank you for sharing your knowledge!

[@pilum78]

Hello Dr. thanks so much for your videos. I’ve learned a lot from you. Would you recommend Adapalene for acne only, or as anti-aging/hyperpigmentation as well? Ty in advance

[@jt8142]

pilum78: The retinoic acid, Adapalene, was developed for acne control; however, like other retinoic acids, it also has photoaging benefits too. 👏 😃

[@Vialamesa]

Yes! Thank you for this❤️

[@joi0708]

Dr. Lim - How would you assess Murad skin care products? Also, does a prescription of retinol-a micro expire? A have a tube, but rarely used it because it irritated my skin. Meanwhile, thank you for explaining the various acids. The product recommendations are very helpful too❗️

[@triplejjojo2602]

Thanks Doc Lim, for this info, i have to cancell my kojic soap i ordered. I have to listen to you than a friend who recommend it. Have a good day

[@ejaynirvehc270]

Thank you so much for your great advice and clarification to explain the difference on which product does what ! As well as the price tag ! 👌🏽

[@KawaaiLeRemy]

What about TCA? I do have experience with using 25% on my body at home (once a month), and it's wonderful for pigmentation. Would always love to learn more about it

[@MochaRose990]

what brand?

[@OleensEmbroidery]

Love my 30% TCA, but it is VERY strong and must be used sparingly. I studied up on it on the internet. Got all kinds of tips and precautions.

[@ejaynirvehc270]

OleensEmbroidery where would you purchase this particular product please ?

[@OleensEmbroidery]

@@ejaynirvehc270 A Dr. got it for me a long time ago, however I think you can get it on line now. You want 20 to 30% Trichloroacetic acid

[@jettaflavor]

Check out platinum skin care - they walk you through everything on tca peels. I do them every 8 weeks. Great company

[@honeybadgernasty]

This was theeeee BEST lecture I have ever attended! Thank you Doc for sharing your knowledge!

[@ainulmahadzir2988]

Thank you. It's really easy to understand and great explaination.

[@lucasballas]

Hi Dr Lim! Wondering what you would recommend for people dealing with hard water?

[@lhmcd5538]

You are a great educator. Thank you for such in-depth information. I appreciate this so much. Please take care and stay safe.

[@Shanna777]

Dr Lim, i used skinceuticals retinol 0. 5 for a week or 2 with biologique recherche p50 pgm 400 lotion. My face was irritated so i stopped the retinol. Im waiting for my differin gel, can i use it together with the BR p50t or p50 pgm 400? Thank you doctor lim

[@Starlight-zf9ky]

Hello from Germany. :-) What do you think of the UK-brand TIMELESS skincare, acids and serums? I would like to try it out and wonder whether these products are worth the money!?

[@brookspa94]

Starlight I’ve used their Vitamin C, & I personally think the formulation is very good! Haven’t tried any of their other products yet! Hope that helps some!😊

[@Nilmavi]

Timeless is actually an US brand :-)

[@miaash3870]

Dr Davin, Is it correct that glycolic acid is not suited for skin of colour? My/my parents skin is white, however my heritage is middle eastern. And thank you for all the great information you so generously provide.

[@cherielacroix3046]

Nice seeing you again! Thank You!

[@jljordan1]

I’m a nurse aide in a nursing home in the states. We are required to wear masks for our shifts and N95 masks or surgical masks are not available. So we’re wearing homemade cloth masks (some have pockets for coffee filters) and with working three 12 hour shifts in a row my skin is wrecked. Specifically my nose is chapped, I think. It’s irritated like I’ve been blowing my nose with rough tissue! I wish I could rub the aloe lotion tissue on it to make it feel better. 😩 My skin is getting rough though, outside of that. Seems like my skin is dry in the morning, but an oil slick midday. Used to not be that way. And I have red bumps all over! (Not acne like, or white heads) ugh.

[@sherinie22]

I'm so sorry you dont have the proper PPE. My heart goes out to you. Maybe you can try LRP cicaplast or Krave's great barrier relief to help with your damaged skin barrier. Stay safe.

[@jessesandoz1209]

love all your content!! can i use a moisturizer containing AHA (Glow recipe watermelon sleeping mask), then apply differin gel a few hours later right before bed? my skin isn’t sensitive and i get mild breakouts. thanks so much for any help!!

[@subbtitle1887]

your vids are such a relief from all misinformations among youtube skincare product reviews and recommendations. I have saved a lot, hehe thank you so much Doc Davin. Love from the Philippines:-)

[@lllovesalll]

Hi Dr Lim, any chance you can talk about natural skincare like turmeric, bentonite clay, oatmeal? I love bathing with oatmeal and would love to hear your scientific insights on this and other natural stuff!😊

[@fulviokatmarano7692]

Thank you, thank you, thank you! Great info! I just did a TCA peel (20%), What do you recommend using after one?

[@mzallthat]

I love using Kojic acid but I buy the pure powder from making cosmetics (makingcosmetics.com) in the US. $15 for 50g and it last a long time. I make small batches (1 oz) with hyaluronic acid and use it a few days a week. I do not have sensitive skin but I do get hyperpigmentation and PIH (I'm African American, #4 Fitzpatrick skin type) and it works well. I do layer it with other tyrosinase inhibitors, azelaic acid, Niacinamide, Tretinoin, alpha arbutin. I don't layer them all, it depends on what I have on hand. I avoid the use of hydroquinone. Your videos have help me learn how to treat my skin, Thank you so much.

[@taranullius9221]

I've always wondered if Arbutin would mess with darker skin types. Good to know.

[@sofarnah]

Hi Dr Lim, thanks for sharing your knowledge with us as always. I've been a long time follower of your channel. Your 4:59 photo of "Ordinary Plus Azelaic Acid Suspension 10%" doesn't look like it's from Deciem but some imitated product from Taiwan... Just want to point it out so your viewers don't get the imitated product! (Correct me if I am wrong, but I tried googling it thinking it is a more potent version of The Ordinary!)

[@komatsusakura]

I did check Taiwan packaging but need …ore info

[@TheAlskdfj]

Dr. Lim, this video was super helpful. Can you please post a part 2 to this one on the other acids you mentioned? Thank you! 🙏🏽🙌🏽

[@asensions1]

anyone know that Ordinary Plus Azelaic Acid with the blue tube? where can you get it?

[@leazheng2528]

love love love this channel.So informative and you explain things so well!

[@zirjelle]

Hi David, as always so informative. I use Ren, Bio Retinoid concentration oil as my introduction to Retinol. What would be my next step up and is this a good starter?

[@lindatsai3454]

Thanks for this video! Where do you recommend azelaic acid go in the routine? And can it be used in the same routine as aha or BHA or retinol? Thanks!

[@WaitingForTheSubway]

Good question. Does it take the place of your glycolic, or is it in addition to?

[@nic4666]

Thank you again Dr Lim. Could you please do an updated list of any at home devices you would recommend?

[@vulehoangphuc1669]

Dr Davin, T.O toning solution glycolic acid 7% contains rosa damascena flower water, which is fragrance. I don't think it's suitable for acne prone skin

[@AvioftheSand]

Thank you for covering SkinCeuticals' CE Ferulic :)

[@sammy908]

Seriously love your content. Good job mate thank you for every one of your videos

[@skateata1]

My dermatologist saw my keratosis pilaris (like 15 years ago) and recommended glycolic acid MadermaAG body lotion 17% concentration. Huge difference after 2 days.

[@nejmurat7730]

Whats the full name dear ?

[@Lyshie7]

Hi Dr Davin! Could you please review the Korean Skincare brands called COSRX ? Apparently that brand is very popular and good reviews!

[@justlovemusic8182]

And Klairs and I'm From

[@kahoumma]

That's best skin products!!!!

[@pawool]

Brilliant info again thank you! You mention to put on a moisturiser half an hour after using a prescription retanoic acid if you have sensitive skin. I don't have this and I put on moisturiser straight after putting on the Retrieve cream. Does moisturiser dilute Retrieve? Thanks :)

[@dumdidams]

thank you dr. Lim. i really enjoyed and appreciated with all of your videos about skin care and treatment. in the next video could you please sharing about tranexamic acid? because i rarely see a video about it.

[@onnaharrison9882]

You explain things very well. It’s simple and easy to digest the information. Thank you

[@francescadulash3511]

Noticed a big name brand offered a powdered Vit C Cleanser - exactly the same as The Ordinary Vit C powder. I decided to test it! Either do 2 scoops in a bit of water or cleanser. Apply over face & neck. Leave it on a good 5-10 mins (and shave if mixed with cleanser). Rinse it off in the shower. I've found its really helping a bad patch of pigmentation on my forehead. Is this safe Dr D? And use sunblock with acids esp daytime!

[@awomanofacertainage1993]

What do you think of the Dr Dennis Gross peel pads?

[@vister6757]

Azeliac may be better choicefor me as vit c sting my skin. Tretenion (vit a) makes already very dry skin even drier. I only use it once a few weeks or month.

[@sandradunaway6969]

Dr. Davin, I love your videos they are very educational. I struggle with malasma tried dozens of products and laser treatments and nothing work. Is there a particular treatment you can recommend?

[@komatsusakura]

Vitamin C waiting for timless skiping L ascorbic acid . Vitamin A have to go on a 2 weeks break . 2 nd break and restart once a week with gycolic once a week too . Vitamin C aslo i have changed . Now looking for Acid and Vitamin A replacement .

[@zs2wj]

Wonderful video thank you. Can’t wait for the next one 😊

[@ema3608]

Hi Dr can I use retain a mix with moisturizer and apply to body....I Wana use lower percentage

[@anca-maria3655]

Thank you so so much! Your skincare advice is amazing!

[@natalijab4570]

Thank you so much for your expertise ❤️❤️❤️

[@scholargrrl]

Thank you for the info! Hope y'all are staying safe and relatively sane. ♡

[@iza4150]

What is better for hyperpigmentation Alpha arbutin or kijoc acid?

[@thisisada]

Yes, please! Continue with the explanation of acids 🤗

[@subboxjunkie8298]

I saved this video in my favorites, thanks Doctor !

[@kimberlyclairecabonita566]

Can u use kojic acid as facial soap then apply other acids like retonoic or azaleic acid?