MarkBroussard
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- MarkBroussard
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- Member, Professional Chemist
Comments
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@shechemie Your Phytic Acid content is quite high at 2%. You might want to consider add the Phytic Acid at the end to adjust the pH to your desired end-point. Tocopherol Acetate ... does absoultely nothing ... better to use mixed tocopherols or …
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The nice thing about the glycols is that you also get some preservative boost in addition to moisturization/humectancy.
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If this is a cream, you can use glycerin at up to 5% without any sticky afterfeel ... all depends on what else is in your formula. Glycerin + Propanediol or Pentylene Glycol or Butylene Glycol If you want to avoid using Glycerin you could use Sodi…
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Honey is water-soluble, so just treat it like it was your water phase and use any appropriate emulsifier for the type of emulsion you are trying to create ... O/W or W/O.
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Most reputable suppliers sell extracts as either a 50%/50% mix of Glycerin/Water + 8% Extract. If you are loading in 1% Extract blend, which is common, you're actually winding up with a miniscule amount of actual extract in the formula. As Perry m…
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The concept of a "serum" is a simple formula containing few "active" ingredients in higher concentration than you normally find in creams, etc. As Perry mentioned, they are generally quite viscous. A serum is a very direct, c…
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IMHO ... neither Essential Oils nor Fragrance Oils serve any benefit to the skin other than scent. So, your tradeoff is something thing that smells good, but also has negative effects on the skin such as photosensitization and/or allergic reaction …
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Yes, just trial and error the % until you get something your test panel likes. Make a 5% batch and see how your customers like it.
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@Belassi: 2% or so Cetrimonium Chloride is a good place to start
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I'll add that there is no category "Medical Grade" cosmetics ... "Medical Grade" is a marketing term implying that some of the ingredients used in the product are USP-grade as opposed to Cosmetic-grade
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PAO applies to products with a shelf life of 30 months or more ... if your product requires a shelf life of 30 months or more, you have a sales & marketing problem, not a product stability problem. For most consumers, the PAO is when the contai…
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I'll note that all of these brands also sell their products through online channels ... diluting the "professionals only" channel strategy. But, presumably they get a boost in consumer's perception of effectiveness if they are carried in …
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@jpsmax: Nope ... no difference. It's a marketing/sales channel strategy that does not have anything to do with the products. There may be some occasions where some ingredients in certain products must be dispensed by a physician, but that would …
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@formulatorN00b: The reason you mostly see this approach with LAA is due to its instability in solution. Mixing LAA powder into a serum immediately before use ensures you don't get degredation of the Vitamin C over time. Yes, you can add other …
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@MJL : Adding a humectant or refatting agent to a face wash is more beneficial from the perspective of the skin afterfeel ... the skin does not feel so "squeaky" clean ... you'll feel this more on your hands than on your face. Yes, you c…
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@devo2: The way to figure out your issue is to run your powders through a 20 uM sieve. Regrind the residual that is trapped by the sieve ... these particles are too large to pass through the sieve and get trapped. Keep doing this until all of you…
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Correct: Betaine = Trimethylglycin ... it's an osmolyte that helps to retain water and penetrates the hair shaft.
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@Margi: Add 4% Betaine and 0.5% Babassu Oil or 0.5% Coconut Oil and that will help tame the frizzies.
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@Margi: General Guidelines: Plant Extracts 1% or less Emulsifiers 2% to 4% Fatty Alcohol Thickeners 2% to 3% Gums 1% or less Preservatives 1% Surfactants 20% for primary, less for secondary surfactants. Shoot for a total surfactant load of 35% to…
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@margi Water QS to 100 Slippery elm 1 Aloe Vera 10 Coco betaine 10 Sodium Cocoyl Glutamate 20 Apple cider vinegar 3 Citric acid QS to adjust pH to 5.6 Shea butter .05 to 1 (maximum…
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IMHO ... CBD has utility in pain relief topical products, but personally I think it is quite useless as an ingredient in a skincare "beauty" cream that is not intended for pain management.
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Yes, you could make a shampoo with only those two surfactants. You might start with 20% SCI and 10% CCG and see what foam profile you get and adjust from there, but those are good starting points. It is easiest if you grind the SCI into a fine pow…
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It is unfortunate, but re-packers like MakingCosmetics often modify the INCI to make it a bit different from the ingredient manufacturers that they purchase product from. Presumably, part of the re-packer distribution agreement is that they cannot …
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Poly Suga Mulse D9 is a fragrance solubilizer ... no, it's not really an emulsifier per se.
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Of the options you have listed, Linatural MBS would be your best choice as it would be effective over a wider pH range. Load it at 1.0% to 1.5%
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@Dtdang: Correct, Oil-Free is a growing category for exactly the reason you have stated. Many consumers do not like the sensorial of oil on their skin ... I am one of those consumers who prefers "oil-free" for certain product categories …
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(Quote) Dick Johnson Ballwax! ... At least they have a good sense of humor.
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(Quote) And those reasons would be? You forgot to mention any specific reasons.
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(Quote) @Dtdang Just follow a very simple rule: If an ingredient has the word "Oil" in its INCI name, don't include it in your product if you want to claim "Oil Free" ... it is not universally applicable, for instanc…
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Who's trolling? ... I am explaining the difference between a Dry Oil formula and an Oil Free formula ... It's not a matter of anyone being afraid to ask a question, it's a matter of people posting incorrect information ... that doesn't help anyone.…
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