student54
Forum Replies Created
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I’m sorry because the post of Feb 16 is duplicated accidently. I don’t even know how to erase one of them.
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There is a Preservative called Ethyl Lauroyl Arginate Hcl, I read that it’s approved by one of the International Natural Standard, but, I haven’t tried it by myself neither in Vitro nor in Vivo. In case if someone like to try it, but, it is, still, cationic and has ethanol in it which could be irritant to some skin type
https://www.ulprospector.com/en/na/PersonalCare/Detail/10739/711382/SPI-Silguard-20?st=1&sl=57232420&crit=a2V5d29yZDpbZVRIWUwgTEFVUk9ZTCBhUkdJTkFURV0%3d&ss=2&k=eTHYL|LAUROYL|aRGINATE&t=eTHYL+LAUROYL+aRGINATE
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The most famous Anionic Surfactants, currently, are Isethionate family (Sodium Cocoyl Isethionate, Sodium Lauroyl Isethionate, Sodium Lauroyl Methyl Isethionate, etc) I noticed that formulators and customers like it because of the foam and conditioning effect, but, it could be “Pricey” and it may require adding 10% or more in the formula to be effective
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I just picked that preservative because of the sensitivity of the area it will be applied on (around the eye) as long as it can be trusted in the eye drops (Re: The Hyperlink). My Concern is basically is not to cause inflammation or irritation in that area. Usually with Isethionate formulas (Anionic Surfactant), I observed some Preservative like Euxyl PE 1910 but it include Phenoxyethanol which is identified by the some Natural Standard as a skin irritant in the concentration of 1% or even closer. Sodium Benzoate and Potassium Sorbate my not be enough by themselves against all pathogenic microorganism. This area needs a preservative which should be non irritant for the skin and Broad Spectrum as a preservative. Mild on the skin should be tested “In Vivo”. Broad Spectrum should be tested “In Vitro” without these results, I think it is hard to predict the most suitable preservative in this case.
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Anionic Surfactant Sodium Lauroyl Methyl Isethionate 10% and Amphoteric Surfactant: Cocamidopropyl Betaine 3% are just my initial estimate for the first prototype. If you need more foam and/or Viscosity, you may increase the concentration of each surfactants in the second Prototype.
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Actually, I know some other Anionic surfactants which can make your hair Silky and soft, but, if you don’t want to use a different Anionic Surfactant, at least, you may remove the first ingredient you have in the formula, and if lamesoft, you are using, has an anionic sulfated surfactant, you may remove it also. Some shampoos can be formulated with Amphoteric Surfactant (Cocamidopropyl Betaine) and Non Ionic Surfactants (Plantaren 1200) only without Anionic Surfactants. If you want to thicken it up without Salt, you can add cocamide and adjust its % based on the kind of Cocamide you are using
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I passed by a Make Up Removing Facial Cleanser formula ending with pH: 5 - 5.75 considering that pH of the Skin 5.5
https://www.ulprospector.com/documents/1183264.pdf?bs=2626&b=238583&st=1&r=na&ind=personalcare
But I think that the Conc. of the first ingredient, in this hyperlinked formula, is significantly high. For me I prefer adding the Anionic and Amphoteric Surfactants separately to control the concentration of each surfactants. Also, Sodium Lauroamphoacetate has up to 7.5% sodium Chloride in addition to 3% Sodium Chloride added separately in the formula ending to 10.5% Sodium Chloride in the whole formula which may cause irritating in the eye area after drying the cleanser if this area hasn’t been washed completely by water to remove all the dried Sodium Chloride. I may try adding Anionic Surfactant: Sodium Lauroyl Methyl Isethionate 10% and Amphoteric Surfactant: Cocamidopropyl Betaine 3% instead of Sodium Lauroamphoacetate. I don’t think Facial Cleanser must be thick, so, I don’t need to to add any Sodium Chloride. If it has to be thick i may add up to 2% Sodium Chloride for the Whole Formula. Also, some preservatives can cause Skin irritation, I may add benzalkonium (BAK) and sodium chlorite.
which is used to preserve eye drops:http://www.wisegeek.com/what-are-the-common-types-of-preservatives-in-eye-drops.htm
I may have to try all that in a small lab batch to see if it works if I’m asked to formulate a product of this kind.
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I passed by a Make Up Removing Facial Cleanser formula ending with pH: 5 - 5.75 considering that pH of the Skin 5.5
https://www.ulprospector.com/documents/1183264.pdf?bs=2626&b=238583&st=1&r=na&ind=personalcare
But I think that the Conc. of the first ingredient, in this hyperlinked formula, is significantly high. For me I prefer adding the Anionic and Amphoteric Surfactants separately to control the concentration of each surfactants. Also, Sodium Lauroamphoacetate has up to 7.5% sodium Chloride in addition to 3% Sodium Chloride added separately in the formula ending to 10.5% Sodium Chloride in the whole formula which may cause irritating in the eye area after drying the cleanser if this area hasn’t been washed completely by water to remove all the dried Sodium Chloride. I may try adding Anionic Surfactant: Sodium Lauroyl Methyl Isethionate 10% and Amphoteric Surfactant: Cocamidopropyl Betaine 3% instead of Sodium Lauroamphoacetate. I don’t think Facial Cleanser must be thick, so, I don’t need to to add any Sodium Chloride. If it has to be thick i may add up to 2% Sodium Chloride for the Whole Formula. Also, some preservatives can cause Skin irritation, I may add benzalkonium (BAK) and sodium chlorite.
which is used to preserve eye drops:http://www.wisegeek.com/what-are-the-common-types-of-preservatives-in-eye-drops.htm
I may have to try all that in a small lab batch to see if it works if I’m asked to formulate a product of this kind.
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Why do you like to have a Crystal Clear Water Soluble Pomade?
If you try Natural Waxes and Natural Oils, the formula may not be clear, but, it could be sold better because it will be “Natural” -
Actually, I agree with Bob. Giant Supermarkets including Grocery Stores and 99 Cent Stores are still selling (of course making profit) the Sulfated and synthetically preserved Personal Care Products. The Majority of the Public is still not educated enough about the quality of the formula. Most of them are looking at the price not LOI (List Of Ingredients). They trust the name of the Supermarket more than the name of the product. I still believe it’s mainly about Sales and Marketing.
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Hi Bobby
Feel Free to e-mail me: geynib439642@gmail.com -
You could be right regarding the mixer issue. Also, it’s hard to get a reliable sample from less than 500 grams. I don’t know how many grams your sample size is. You may try to mix moderately (Not High Mixing) and make sure that the head of the mixer is in the bulk of the sample (not on the surface)
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Does you product change color only when it’s exposed to the weather? For example, If you keep you product in a clear / transparent glass container, does it change color, also?
Did you check pH of the product on constant Time Interval? For example, weekly for the period of 3 months starting with the Manufacturing Date?Does your product have Vitamins and/or Anti-Oxidants? -
I think Vitamin K is photosensitive because it involves directly in plant photosynthesis. If you are making the formulation sample in a glass beaker or glass jar, did you wrap the beaker / jar with foil sheet to protect the sample from light?
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Hello. My Name is
George Ibrahim. I’m a Cosmetic and
Personal Care Chemist living in southern California (U.S). I have 9+ years of experience in formulating,
reformulating, Testing, Adjusting, Manufacturing, Scaling-Up, and Troubleshooting
Cosmetic and Personal Care Products.
Currently, I’m working on a project of enhancing the appearance of Acne
Scars and I’m looking for a company to sponsor it.For more details, please, e-mail me:
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