MarkBroussard
About
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- MarkBroussard
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- Member, Professional Chemist
Comments
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If you add 1% of the powder it will reconstitute to Aloe Vera Leaf Juice. There is no "normal" amount ... it's as little or as much as you want.
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@Shams Yes, sunscreens are regulated as OTC drug products in the US. Your product must be registered with the FDA and must be manufactured in an FDA OTC-certified facility. GRASE means Generally Regarded As Safe & Effective. If ZnO is the…
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@shams: The maximum allowed use of ZnO in sunscreens in the US is 25% and that should give you an SPF in the range 30 - 50, but it all depends on what else is in your formula. GRAS means Generally Regarded As Safe & Effective. If ZnO is the o…
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One option to reduce stickiness is to completely delete Glycerin from your formula ... glycerin actually reduces the effectiveness of the sanitizer. If after removing the Glycerin it is still too sticky, then the problem is the MaxxThix. If you ab…
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@Susie: When you see a product with an LOI like this, you should always be skeptical since it is not labeled in compliance with FDA labeling guidelines. Now, if it would have said: Cocamidopropyl Betaine (Coconut Cleanser derived from Green Baby …
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@Dtdang: It all depends if the product is packaged in a box or not. If it's in a box, many companies print the required label info on the box ( such as list of ingredients ) because there is insufficient room on the container itself to display all…
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@shams: There are a number of testing labs that can do the requisite SPF, Broad Specturm and Water Resistance testing for you, depending on what you want to claim on your label. In the US, Sunscreen products must be manufactured in an OTC-certifie…
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@Abdullah: Use Cocamide MEA if it what you have available. But, your problem is still that you simply do not have a high enough surfactant load ... going from 10% to 12% will not change much at all. If your costs bear it, go from 10% to 20%.
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Linatural Ultra-3 from Maroon Group: Phenethyl Alcohol, Pentylene Glycol, Propanediol
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Phenoxyethanol + Caprylyl Glycol is another widely available commercial blend.
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Try Cocamide MIPA or Sodium Cocoyl Isethionate. But, the problem would appear to be that your formula is quite light on total surfactants at only 10%.
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Yes, all you have to do is use a bit of lactic or citric acid to drop the pH a bit. I always adjust to this pH range unless there is a main ingredient incompatability that requires a higher or lower pH.
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@Spadirect: The general pH range for human skin is 4.8 - 5.3 or so. If you want to develop a "pH balanced" product, then formulate in this range. It's alway a bit better to have your products on the lower end of the range since the acid…
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Dehyroxanthan Gum will actually decrease the viscosity of your emulsion, depending on the ingredients ... it is quite difficult to work with and is actually an ingredient used in hair styling products ... it is not a general purpose thickening gum f…
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Why not just use Euxyl PE 9010: Phenoxyethanol (and) Ethylhexylglycerin
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BASF has a product that is Salicylic Acid complexed with Acacia Gum that is a spray-dried solid and goes right into solution in water, no other solvent required. You might cost compare that ingredient versus Salicylic Acid + Propanediol + Propylene…
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@letsalcido: That I do not. Obviously, there have been lots of projects for hand sanitizers the past few months. I made BenzAlk sanitizer prototypes with and without CETAC is how I know the skin sensorial gets unacceptable above 1% or so. Much ea…
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@Belassi: 1% to 2% CETAC should do the trick. But, CETAC is not nearly as effective an antimicrobial as Benzalkonium Chloride ( use level is 0.10% to .12% ) and the CETAC does make the product sticky, but perhaps not so much in an antibacterial li…
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@PeaceLoveNaturals: You can use Propanediol at any percent you want ... it's all a matter of cost and sensorial. In a Lotion, 2% should be just fine ... you'll get the added benefit of boosting your preservative in addition to moisturization.
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@JamesLD: You will need on the order of 25% to 30% Propanediol. Add 1% Sodium Citrate and that will help solubilize the SA. As mentioned above, ditch the NaOH. Keep your pH between 3.0 and 4.0. Add 2% Polysorbate 80.
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In cosmetics, you're better off using the trade secrets route than patents. Patents would only really be relevant if you have a proprietary ingredient or combination of ingredients that have some specific effect/benefit. Then the issue becomes that…
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Selling to the Professional market as opposed to the mass consumer market is a marketing/distribution channel strategy. Several companies pursue this approach.
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@esthetician922: (1) If the product you are selling contains an ingredient that in designated as an OTC drug active ingredient, such as Benzoyl Peroxide for acne treatment products, then your product is an OTC drug product and must comply with th…
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@esthetician922: Yes, if your products are sold only to the Professional market (Estheticians, Dermatologists, etc.) and not to the general public, there are are a different set of labeling requirements. It's not a "loophole" ... the reg…
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"Better" is a relative term ... "Better" in what context? "Better" meaning it is more effective? Or, easier to incorporate into a formula? Or, more stable? Depending on your product format, say a cream ... then, Yes…
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Try Ultrez-10
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Ultrez-21 will not give you sufficient viscosity in a hydroalcoholic solution ... use Carbomer instead at 0.5%
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@Doreen: The stabilizers are generally tin-based compounds
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@Doreen: No, I've made teeth whitening gels with 12% H2O2 ... the H2O2 contains stabilizers that are quite effective and are designed for the professional market, not the consumer market. The common hydrogen peroxide solutions you buy at the pha…
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@Fekher The recommendation on ethanol is at least 60% ethanol (v/v) is required to be effective at sanitizing. I don't know if 80% is necessarily more effective than 60%. If alcohol is applied to the skin any lipids that "dissolve" in …
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