Cosmetic Absorption by the Skin

[@mdml0]

Thanks for doing this video! As a medical professional, I see many online fear mongers and diy homecrafters forget or are unaware of the main function of the skin and how amazing it is in its job. That is to protect the body. This needs to be shared.

[@theinstituteofpersonalcare6401]

Thanks for watching! Please contact us for the full formula, method and supplier details - FREE! [e-mail] Happy formulating!

[@chrisr9764]

If the fearmongering were true, then we wouldn’t have to eat anymore. We could just rub food on our skin and then we would absorb all the nutrients directly from the skin to our bloodstream.

[@theinstituteofpersonalcare6401]

LOL love it thanks Chris!!! :)

[@GodOfMySalvationIsYeshua]

@@theinstituteofpersonalcare6401 what nonsense. That's a terrible example. Argumentum ad ridiculum

[@Maggiemae01]

I've always been suspicious of the vitamin patches. Does this apply to those, too? Like, are they basically useless?

[@VarunPrasathQualityCoordinator]

If there was ever a news channel dedicated to Cosmetics, you should be the Anchor! Your delivery of message is fantastic and easy to absorb, pun intended! Please keep making more awesome videos😀

[@theinstituteofpersonalcare6401]

Thank you!

[@tatak743]

I always loooove your videos Belinda!! Love that you come with the full info and even the sensible sense regarding untruth about skin absorption! Thanks you 🙏 wish people was watching the right videos and going to the right source instead of checking bloggers that have know scientific knowledge about things they spread in the internet.

[@theinstituteofpersonalcare6401]

Thank you so much! Glad they have been helpful. :)

[@josbessems2016]

Some warnings need to be given for too much optimism that may result in neglect. We do know quite a lot of chemicals that actually do penetrate skin quite fast. That may not be the common chemicals in cosmetic formulations, true. But be carefull to build your reasoning too much only on the fact that skin is a protective barrier. It has quite some 'specific leaks'. Pharmaceutical companies producing pharmaceuticals as cream are well aware of this. Occupational hygienists emphasizing use of gloves do as well.

[@theinstituteofpersonalcare6401]

Learn how to formulate with active ingredients, including how to stabilise them in your formulas and check quality/stability with our Diploma of Personal Care Formulation: personalcarescience.com.au/CosmeticScience/DiplomaofPersonalCareFormulation-479/

[@Turkeysubs]

Except in America we don’t nearly the amount regulations like the EU and no testing required

[@theinstituteofpersonalcare6401]

To learn multi-country cosmetic compliance, including all ingredient searches, claims, labels, stability & quality aspects, please study: • Certificate in Cosmetic Regulatory Essentials: teaches multi-country compliance and cosmetic regulations for AU, EU, Canada, ASEAN countries, Sth Africa, Sth Korea, China, USA, UK, NZ, Japan & UAE. Includes how to prepare EU/UK/Chinese PIFs as well as all claims, labels and related evidence as well as product evaluations, quality and stability testing.

[@sydneyolp1696]

I’m really trying to get to the bottom of this topic! Do you have sources for this video? Thank you!!

[@theinstituteofpersonalcare6401]

Thanks for watching! Please contact us for the full formula, method and supplier details - FREE! [e-mail] Happy formulating!

[@chanistein9716]

Can a glycerite in an emulsion penetrate to which layer of the skin?

[@theinstituteofpersonalcare6401]

Glycerin will help enhance penetration to the mid layers of the epidermis depending on the formula, what else is in it and the size of the molecules.

[@nodualidad.patrihernandez4008]

Loved this. Here's my thought: cosmetics need to go back to a 'tribal supply' where communities make and supply them to their people using artisan labour that cares about natural ingredients and botanicals from the area (thus learning what their skin's needs are and actually providing custom solutions). That means, amongst other things, using preservatives that are gentler (products would be used quicker, supply is near, no need to preserve for long periods of time). Educating people to treat their skin as well as other things in their lives they worry about would be a must, of course. The idea here is not that we put a stop to current methods of production as much as recognising there's a general need to reconnect with nature (not just with skincare, think nutrition) and activate that very power (we've all got it) from within. If we use cosmetics the way we take a headache pill we don't really get the true benefits of the 'whole' plant and its wisdom. There's no connection with the source of the product, the product becomes a soul-less means to an end. In other words, a dead product. Life has been sucked out of it because the consumer uses it without really knowing how was it really made, who (person) made it, where it was made and why was it made (what did they speak about at the business meeting when pushing the product?) etc etc. More and more people are interested in making natural skincare and I've seen how this is growing, over the years, and if many people learn, we can make this happen. Thanks again for a TRULY FANTASTIC video.

[@AfroHairScience]

Outstanding!

[@theinstituteofpersonalcare6401]

thank you :) Please email us for full formulation, method and supplier details: [e-mail] we provide this free. Happy formulating!

[@alexandra1234]

thank you! very useful! can you also make a short video about possibilities to increase absorbtion into the derm and not being stuck into the corneum? more information about penetration enhancers would be useful from an expert point of view

[@theinstituteofpersonalcare6401]

Hi Alexandra, have just recorded a 'Do Cosmetic Work' video where I talk about HOW to actually enhance penetration :) Its a snapshot of it, we do teach it in a lot more detail but the video will be out soon with some practical tips :) Happy formulating!

[@gitsurfer27]

If 10% or less is penetrating into our bloodstream isn't that still really bad for you? I'm not talking about the risk of cancer, i'm talking about the quality of your health, 10% still sounds like a lot to me surely that will have detrimental effects?

[@theinstituteofpersonalcare6401]

Please note the video says less than 10%, and it totally depends on so many other factors, like size and skin compatibility - and that is just the outer layer of the epidermis too. The biggest challenge we have as cosmetic chemists is to get actives to the lower layers of the epidermis where they have their whitening or anti-ageing benefits, for example - which is why so many consumers out there aren’t totally happy with the results of their products, because they can’t reach the site of best activity. Products like your shampoo and conditioner, for example, don’t penetrate at all because they aren’t even present on the surface of the skin long enough. Even if they were, they’d get itchy and irritate the very outer layers of the skin so you’d want to wash them off. Skin creams are designed to get some penetration to the mid layers in many cases (epidermis) and often do achieve this, for a lasting moisturising effect. Beyond the mid layers, it is very hard to get small actives any further.

[@arifabegum174]

Are there any cumulative effects of these cosmetics? Could there be any side effects after long term of usage?

[@theinstituteofpersonalcare6401]

Thank you for watching but it depends on what you are using! The company putting the product onto the market needs to make sure the finished product is safe when used as directed. We’d need to review this on an individual basis to guide further. See how to access advice: personalcarescience.com.au/Advice/Advice-2046/

[@VS-ns8wr]

@@theinstituteofpersonalcare6401 Well isn't that the only thing that matters? If we didn't use 160x the proper amount of lotion in a day, what happens if we apply it every day for 160 days? All of the products listed on the absorption chart we use everyday, if not multiple times every single day. I'm as curious about nutrient based products as the ones that contain harsher chemicals.

[@rajg4512]

If it is not absorbed what is the point using retinol or vit c cream

[@theinstituteofpersonalcare6401]

It is absorbed to the point where it needs to work - that is the point! Learn how to formulate with active ingredients, including how to stabilise them in your formulas and check quality/stability with our Certificate in Advanced Cosmetic Science: personalcarescience.com.au/CosmeticScience/CertificateinAdvancedCosmeticScience-478/ or Diploma of Personal Care Formulation: personalcarescience.com.au/CosmeticScience/DiplomaofPersonalCareFormulation-479/

[@nicolec3721]

Loved this video

[@nounamassa5586]

Thanks for the interesting video could penetration inhencers increase the amount of chemical absorbed by the stratum corneum ?

[@theinstituteofpersonalcare6401]

They can help it traverse to the stratum granulosum but there is still significant difficulty getting to the stratum basale and across it - I have a video coming out soon on this 'Do Cosmetics Work' please watch that its got some great graphics to explain this too. Happy formulating :)

[@nounamassa5586]

@@theinstituteofpersonalcare6401 ok thanks ma'am

[@nuon2123]

How long does it takes skincare ingredients to get absorbed into skin? Like kojic acid or alpha arbutin. Can i wash my face after applying kojic acid cream for 1 or 2 hours? Will the product has done its function in 1-2 hours? Or do we have to keep it on our skin for 4-5 hours to get maximum absorption?

[@theinstituteofpersonalcare6401]

It depends a lot on the formula and if penetration enhancers have been used. You could also conduct product evaluations to ensure the required performance for your products before you launch. I’m sorry I can’t answer this without reviewing the formula of the product properly, as it can depend on many factors. Happy formulating!

[@ankhenaten2]

couls you name some penetration enhancers?

[@Lulovna]

Does this mean i shouldn't use luxury oils on my lotions?

[@theinstituteofpersonalcare6401]

The luxury oils still make the skin feel great and protect against trans-epidermal water loss and also provide a great marketing story and elegant skin feel, so if you are using them for those purposes they are a great addition. Please watch my upcoming video 'Do Cosmetics Work' which talks about where you want your actives to go, happy formulating!

[@sanakhannz786]

Excellent video

[@theinstituteofpersonalcare6401]

Glad you liked it!

[@yume816]

Is chemical sunscreen still to be avoided during pregnancy?

[@theinstituteofpersonalcare6401]

No they are generally deemed safe. But as always read instructions on the label and always do a patch test prior.

[@rd1534]

How does my hormone replacement cream work then ?? or is it all nonsense

[@theinstituteofpersonalcare6401]

a hormone replacement cream is not a cosmetic it is a therapeutic product, formulated & works differently

[@cwood8579]

Very informative! Thank you 👏🏻

[@theinstituteofpersonalcare6401]

Thank you.

[@Thanos-u5f]

@@theinstituteofpersonalcare6401 thank you, you 😊

[@erich1394]

Why are we looking at LD50 for rats when this is more about sensitization / chronic absorption? Isn't that more of an acute thing? I appreciate you breaking down your process so that I could even ask such a specific question to begin with!

[@theinstituteofpersonalcare6401]

This is the industry standard of where we start to consider what effect a substance may have on a human - before testing on humans!

[@isabelmarcondes9532]

Saw some messages in the ResearchGate stating we could consider daltons and g/mol interchangeably. If so, and molar mass of SLES is 420g/mol, it could be potentially absorbed (which I do not think happens but am having a hard time to understand)... what am I missing?

[@theinstituteofpersonalcare6401]

The very short contact time and low input of SLES means not much gets absorbed. Please don't forget contact time has a big impact on whether a substance gets absorbed or not. I hope this helps, happy formulating!

[@alexyfit6908]

Hi, can fragrance in cosmetics enter the dermis as it has a low dolton rating? Also I’ve read phenoxyethanol can enter the bloodstream through topical absorption (even in formulations of 1% and lower)?

[@alexyfit6908]

Will fragrance in serums enter the bloodstream?

[@theinstituteofpersonalcare6401]

There are strict regulations in place over the use of fragrances - and essential oils, I must point out, as they are extremely similar chemically speaking - and even stricter regulations over the use of preservatives to ensure safe use by consumers. Remember the tinier the substance, the further it has to travel compared to its size (the pin in the soccer field analogy) - just because it is small doesn’t mean it will get through. The regulations are put in place by considering size, degree of penetration and metabolic consequences should penetration occur. Where regulatory authorities have set limits, they have set them to ensure safe use by consumers, even when considering cumulative totals on daily use and multiple exposures. In other words, you do not need to be concerned about the safety of fragrances or the preservatives used in cosmetics as they have been extensively investigated to ensure safe use in cumulative daily exposures. Other considerations need to be made in providing you an answer, such as the formulation base used and other ingredients present. Serums typically have poor delivery as they have low or no content of amphiphilic substances. You can enjoy your products with confidence where the manufacturer and brand has complied with cosmetic regulations.

[@Redemption4U]

Thanks Belinda

[@theinstituteofpersonalcare6401]

You are so welcome!

[@charmainebibiklass7069]

Can u please do a vedio on how skin whiting creams or lotion work.

[@theinstituteofpersonalcare6401]

Thanks for the suggestion! We have videos on whitening products here: kzbin.infosearch?query=whitening

[@theinstituteofpersonalcare6401]

Please email us for full references on this topic absolutely FREE: [e-mail]

[@ericwilliams5518]

Can yo do one of these for the hair?

[@theinstituteofpersonalcare6401]

Thanks for the suggestion, I will see if I can add this to my list.

[@ericwilliams5518]

@@theinstituteofpersonalcare6401 Thank you!

[@chrisr9764]

I’d like to see an in-depth video on vitamin E and all it’s various forms. Is it true that only the D-form of tocopherols are antioxidantive?

[@theinstituteofpersonalcare6401]

Hi Chris, great topic! I'll add it to my list :) Tocopherol is effective for the formula, tocopherol acetates only work on the skin. Mixed tocopherols work best, keep watching and give me a couple of months I've got a busy list happening! Happy formulating :)

[@shawkymassiveamounts4690]

Thank you

[@theinstituteofpersonalcare6401]

You're welcome. You can learn this in full detail by studying with us - all online - learn anywhere in the world! Please contact us for course information and which course is going to best suit you: [e-mail] We have loads of videos that can help you out! Please go to the search bar on our channel: kzbin.info/door/czaVLd160LPFdn9E8hrYxA And enter the topic to find related videos. Happy formulating!

[@Anca1706]

Conclusion of your video /stipulation: We should not be concerned at all about the bad ingredients damaging the skin, because is not enough absorption anyway. Corollary, according to your video - any cosmetics good or bad, does diddly- squat to your skin. Are you sure you want to stick with this assumption?

[@Jmjdit]

there was no conclusion that there was zero effect

[@theinstituteofpersonalcare6401]

Please understand, there is no 'bad' cosmetics. All cosmetic ingredients are safe when used within regulatory limits, and to use them outside regulatory limits is to be non-compliant! Please watch these videos you will find them helpful (and factual): How safe are cosmetics: kzbin.info/www/bejne/jIW5eHaqh8yIfqM and FAQ Video 2 (go halfway through and to the end): kzbin.info/www/bejne/fV64q2V5iZmVjrc - full references available just email us: [e-mail] . Also do cosmetics work? video: kzbin.info/www/bejne/sGWQeYBjiJekj7c I hope this helps.

[@The2011TSK]

This video was very confusing. Is hair dye still linked to cancer (due to being absorbed through the scalp - skin - and into the blood)?

[@VS-ns8wr]

She is speaking about absorbing into the blood stream. While I feel absorption into the top layer of skin is bad enough. To suggest Formaldehyde is safe to put in products because it cant reach the blood, is silly, because its absorbed into the top layer of skin and is a toxic chemical. Why SHOULD we use it? It matters whats in your products and the appearance of skin is absolutely affected by products you use, your diet, and the way it is cared for.

[@cravensboughner2425]

I know Weedborn has solutions to most diseases.

[@theinstituteofpersonalcare6401]

Thanks for watching!