MarkBroussard
Forum Replies Created
-
Curoyl 42 is in a Carbomer base, if I recall. So, your best bet is to use Carbomer as your gelling agent, but double check on that.
-
The issue is that Rose FO is comprised of numerous constituents that have different rates of evaporation … in fragrance parlance “notes” … Top, Middle, Base. Phenethyl Alcohol is a pure compound, so it only has one note and will not have the same intensity or linger as long as a Rose FO with all three note components.
-
I use Phenethyl Alcohol quite a bit. At best, you will get a faint Rose scent to any product that contains it. Sensitive noses will pick up the scent, but generally most people will not identify it. If you want to use it, it could function as a dual-purpose Preservative ingredient and “Rose scent booster”, but will not fragrance a product on its own.
If you pair it with a Rose Hydrosol, that would work.
-
Formulating for Pets and Children are quite similar endeavours. Best you avoid all fragrances, essential oils, dyes in products for children (and Pets) as their skin can be more sensitive than adults.
From a regulatory perspective in the US, formulating personal care products for children is the same regulatory set as for adults. It’s more common sense that you use more gentle ingredients for children compared to adults.
Perhaps the shape of your mold is something you could consider in developing solid shampoo products for children, plus a bit of an approved colorant.
-
I would suggest that perhaps you change your source of reading materials since it appears you are getting some incorrect information.
Glycerin is not an emulsifier.
Glycerin is water-soluble.
-
When you dissolve Ascorbic Acid in water, the resulting pH will be a bit below 3.0, so you are going to need to raise the pH with a base if you want to get it to pH = 3.5.
No, plant extracts will do absolutely nothing as antioxidants.
10% Glycerin is going to be an unbelievably sticky mess … very unpleasant on the face.
If you are only using this for one week, add in 20% Ethoxydiglycol or Propanediol … it will feels much more pleasant on the face.
-
This is a cool concept, but in my experience, is not suitable for a commercial product. The process to form the gel is tedious and it does not work with all carrier oils … works better with saturated oils, not so goog with unsaturated oils. Generally, the gels are not heat stable. Next.
-
You can increase the Glycerin to 5% or so.
On the Hyaluronic Acid, that’s a pretty high level for a cream … are you using a super low molecular weight HA? If not, switch to a hyaluronic acid with a molecular weight of 200 kDa or less and drop the level down to 0.2% or so.
You can also drop your Vitamin E down to 0.2% or so.
Sodium Benzoate (0.3%) and Potassium Sorbate (0.2%) would work.
-
You should consider using some combination of Water, Ethoxydiglycol or Propanediol, Ascorbic Acid, Ferulic Acid. If you find the pH too low, L-Arginine is a more elegant base than sodium hydroxide.
-
If you are going to be making Vitamin C serum weekly and using it within that week, you really don’t need to worry about stabilizer. The Vitamin C won’t degrade that quickly to really affect the performance.
-
You’re assuming that Mick Jagger still breeds … but, I’d rather not know the answer to that speculative bit of info.
But, to your question, no a cut over a wrinkle would likely not get rid of the wrinkle. The skin would heal, but highly unlikely it would rebuild enough underlying structure to eliminate the wrinkle.
Here’s an experiment for you: Slice your face with a razor blade over any wrinkles you may have and report back on the results when it heals.
-
Wrinkles are Nature’s way of letting you know that it is time for you to stop breeding. You cannot repair wrinkles because Nature wants to remind you of that every time you look in the mirror.
Wrinkles develop over the years as you use your facial muscles, the skin stretches and as @Paprik noted your body naturally produces less collagen, elastin, looser fibrils to keep it taut. A good analogy is a pair of shoes as you wear them and they age.
-
Drop your pH to 4.8 … in a cosmetic product it is very rare that you need to worry about a chemical reaction due to pH levels. Niacinamide actually works best in the pH range 4.5 to 5.0.
Phenoxyethanol … nothing wrong with it as a preservative, but check with your retail channel partners … retailers are increasingly putting phenoxyethanol on the No list.
Linatural Ultra-3 … you can make your own blend by purchasing the 3 components separately.
-
Ok, so you have an issue with Yeast & Mold.
Why is your final pH 7.2? … is there an issue with reducing your pH to below 6.0 (preferrably pH 4.
?There is no single preservative that is effective solo in a cosmetic formulation that provides broad spectrum activity at any pH level … that is marketing hype.
Study up on using Hurdle Technology in your approach to preservation. As I mentioned, the problem is that your product is not properly preserved.
-
I sounds like the real issue is that your product is not properly preserved, more than a manufacturing issue or a Naticide issue. Without any further information, it really is not possible to give you any further advice:
Is this an emulsified product?
What is your final pH?
Are you using any preservative boosters, chelating agents and/or co-preservatives?
What two organisms caused your PET to fail? -
Check with the manufacturer of the Guar you are using to get the best directions on use.
-
Depending on the Guar, the best way to dissolve it is by pre-hydrating in prodopanediol or glycerin, add it to the vessel, heat and drop the pH to 4.0 with citric acid as the first step in your process.
-
The FDA Acne Monograph covers Salicylic Acid in the range 0.5% to 2.0%. You can use Salicylic Acid in formulations within that range provided you do not make Acne claims. For Salicylic Acid above 2%, but more in the range of 10% to 15% you are getting into Wart Removal OTC products and chemical peels.
-
Another word of advice. Do not, under any circumstances, turn over the full formula to this client prior to being paid in full, in advance of releasing the formula. When you receive the final payment, you release the formula. One other thing about wealthy individuals … sometimes they don’t like to pay their bills.
-
Microneedling works by physical insult of the skin which promotes an immune response / healing reaction to stimulate development of new elastin/collagen.
Acids promote exfoliation of the dead/upper layers of the skin, which would also promote a weak immune response, but the action is primarily the sloughing of skin cells, so acids are not nearly as invasive as microneedling.
-
Nope … that is not photoshopped … it’s two twins in the film business. There are some actors/actresses who have grossly disfigured their faces with plastic surgery and injectibles.
Sad thing is, when they look in the mirror, the probably think they look great.
-
There’s really no “correct” answer to this … it’s all a function of the type of formulas you are working on and your level of proficiency/productivity.
If you figure you have the capacity to start work on 2 to 3 new formulas per week and the rest of your time is spent on stability testing, etc., then you are looking at 8 to 12 new formulas per month.
-
Yes, Perry … you may be correct
-
Yes, Collagen and Elastin break down over time and as you age you produce less of each. I don’t know of any injectible that does not naturally degrade once injected into the body.
-
I mostly use Tetrasodium Glutamate Diacetate, often combined with Gluconolactone (and) Sodium Benzoate