MakingSkincare
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- MakingSkincare
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Comments
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Petulia, please do send me a message with your CV as we are currently looking for an intern in London, UK. (Or you can, as Perry suggests, contact the Society of Cosmetic Scientists in the UK and they will refer you to us since I was just yesterday…
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Have you calibrated your pH meter? How are exactly are you measuring the pH? What are in the ingredients in your clay mask?
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Please can you give the full inci names of each ingredient and % of every ingredient. Please also give details of the process and what you mean by "hardens up".
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Yes as Belassi said, the consensus amongst most chemists seems to be that phytocide doesn't provide sufficient protection and clay is one of the hardest ingredients to preserve. Effective preservation can't be summed up into a couple of sentences.…
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I've used sunspheres in my spf formulations for clients and it did raise the SPF. You've probably seen amphisol K in a lot of sunscreen formulas as that is marketed to boost SPF.
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These two links below will give you an idea for a starting formula: http://www.personalcaremagazine.com/formulation-details/2239/natural-hair-pomade?companyid=1259 http://sc.akzonobel.com/formulations/AkzoNobel_formulation_12859125w.pdf
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Can you explain what you mean by "no harmful chemical additives" and "chemical free"? Which natural standard are you using: https://chemistscorner.com/cosmetic-chemists-guide-to-natural-and-organic-cosmetic-standards/
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Have you searched this forum as this has been discussed quite a bit already - just some of the posts:- https://chemistscorner.com/cosmeticsciencetalk/discussion/1374/need-help-formulating-liquid-to-matte-lipstickhttps://chemistscorner.com/cosmetics…
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Clay (in water) is one of the hardest ingredients to preserve. There's a preservative strategy and reviews here which should help walk you through the process: http://www.makingskincare.com/preservatives Good luck
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For a cheap option, try a reptile egg incubator.
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For high yield try Aculyn Excel or Aculyn 38.
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I know some chemists have experienced issues with cetearyl glucoside re stability. As ozgirl mentions, emulugin SG is a great add to an emulsifier blend. It's an anionic, powerful "natural" emulsifier and I have found it to be highly eff…
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Please can you give the inci names of each ingredient and the % you used of each ingredient. Please also describe what you mean by "absorption".
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Yes square hole high shear.
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Yes Margreat, I also like Gattefosse's "natural" emulsifier, Emulium Mellifera however it is quite costly so doesn't fall easily within clients' budgets. (It tends to have good stability though).
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You could also try viscoptima LV and simulgel FL. Don't forget to add a broad spectrum preservative.
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SSDC, sounds like you need high yield for stability and suspension. Not sure which UV filters you are using but you could try bentone gels (oil phase), aristoflex velvet (water phase).
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For example, Merck's Eusolex® 2292 contains BHT with its UVB filter, ethylhexyl methoxycinnamate. Ethylhexyl methoxycinnamate is a derivative of cinnamate acid which is an unsaturated fatty acid so the BHT's purpose is as an antioxidant to help st…
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Nabil, there are thousands of supplier formulas on the web. I'm sure some chemists have tried some of these formulas. But as Perry said they are there as starting formulas for guidance as to how to use the supplier's ingredients. Some supplier for…
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Also try HEC
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I can't edit my comment above, but wanted to add to my list above: KF-7312K by Shin-Etsu
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You might want to use pre-dispersed, coated pigments/mica - try kobo and sensient, merck etc and use bentone, aerosil etc.
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Some great points made by Mark, Bill and Margreat. You might want to learn how to make a basic emulsion - swiftcraftymonkey has tutorials, as do I, and Perry's course is a good start. Don't forget to use a broad spectrum preservative and clay can …
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marky3320, where are you located? I know of a couple of places in London, UK which are recruiting and would also take on interns. Please message me for more details.
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As you are making this at home you could use cling film/plastic wrap to cover the water phase container. You can also weigh the product at the end and make up for any water loss.
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Floral waters would not be appropriate to neutralise odour. I would suggest that you contact a perfumer instead so they can blend something specific or else use deodorized shea butter.
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As Mark has said, there is far more to preserving your product than just adding a preservative. A strategy is needed:- 1. Minimise sources of energy for microbial growth (aka "bug food") - eg fruit, botanicals, tea, lecithin, mineral wate…
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