Members Directory - Chemists Corner

Chemist77

Member

February 13, 2014 at 9:25 pm in reply to: Thickeners - High Polarity Formulations

@gfeldman to suspend around 14% solids in foundation formula it was 0.5% veegum HV and around 0.6 CMC.

Chemist77

Member

February 12, 2014 at 9:03 pm in reply to: Thickeners - High Polarity Formulations

I agree with Bob re the veegum HV and CMC, have used in most of the foundation make ups and similar products, never faced a problem and the thickening is uniform and consistent

Chemist77

Member

February 12, 2014 at 8:58 pm in reply to: Sweetening an oil/bees wax/plant butters lip balm

@Ruben maybe you are right and as I remember fine talc as a filler in color emulsions doesnt give a gritty feel, try to match the micron size of something similar. Try your ground powder too and you will know where you stsnd re the particle size.

Chemist77

Member

February 12, 2014 at 8:57 am in reply to: Lotion Failure - troubleshooting

wow some piece of info.

Chemist77

Member

February 11, 2014 at 9:38 pm in reply to: Sweetening an oil/bees wax/plant butters lip balm

@Ruben maybe particle size equivalent to micronized ZnO or Titanium Dioxide.

Chemist77

Member

February 11, 2014 at 9:35 pm in reply to: Lotion Failure - troubleshooting

Was HLB value taken into account, secondly with such a high amount of oil phase I suppose a mix of emulsifiers would be more effective.

Chemist77

Member

February 10, 2014 at 7:34 pm in reply to: Formulating water-based serums

@pvt its more like an emulsion rather than completely water based, the emulsion looks good with it but with so much water it would take time to rub-in completely. Try replacing a part of water with cyclomethicone so that the play time could be reduced. Add it after mixing all the ing at the end of process.

Chemist77

Member

February 5, 2014 at 8:40 am in reply to: What are the basic science/chemistry concepts do formulators need?

How about a broad categorization of cosmetic and personal care products and then carry on from there while explaining all the details in layman terms???

Chemist77

Member

February 4, 2014 at 9:30 pm in reply to: Thickeners - High Polarity Formulations

http://www.lubrizol.com/PersonalCare/Products/Carbopol/CarbopolAquaCC.html

You can look into this product as well, have used it and found it quite versatile.

Chemist77

Member

February 4, 2014 at 1:34 pm in reply to: cucumber peel off face mask

Selvol has different grades, Kuraray is there and think Du Pont has it too. Try them, I found Selvol very cooperative. You can put your request thru Innovadex, quite a site.

Chemist77

Member

February 3, 2014 at 10:11 am in reply to: Thickeners - High Polarity Formulations

And whats the product?

Chemist77

Member

January 31, 2014 at 1:20 am in reply to: SPF 100 possible or not possible?

@pma If it is a w/si emulsion then I suppose coated TiO2 has to be used.

Chemist77

Member

January 30, 2014 at 9:59 am in reply to: Glycol Stearate in anhydrous formulation?

@Bobz I think the best option for him/her is to use pearl pigments from BASF, Merck, Geotech, Engelhard (was taken over) and so on and so forth. Glycol stearate can completely be eliminated and especially since its an anhydrous product.
But I am still unaware what is the product.

Chemist77

Member

January 29, 2014 at 1:26 pm in reply to: Glycol Stearate in anhydrous formulation?

Why don’t you make a slurry of normal pearls in one of the oils of your formula and use it, lipsticks and lipglosses are anhydrous and richly pearlized.
Or (not sure about this one) use the glycol stearate with an emulsifier in your formula, btw what is the composition? Accordingly choose the emulsifier.

Chemist77

Member

January 29, 2014 at 9:48 am in reply to: Welcome to the forum

South Africa I suppose

Chemist77

Member

January 28, 2014 at 9:23 pm in reply to: Hard water and conditioner

@Microformulation sure thing, I would bring the pH down and see how it performs when washed with hard water.

Chemist77

Member

January 28, 2014 at 9:49 am in reply to: Hard water and conditioner

Thanks Perry and Bobz, is it ok if I use a buffer to achieve this pH??

Chemist77

Member

January 27, 2014 at 9:21 pm in reply to: Hard water and conditioner

@Microformulation The final pH is between 5-6 and guess I didn’t put myself clearly, the water used for rinsing off the hair after applying the conditioner is very hard. Am I right in slightly increasing the quantity of the active and adding a chelate?

Chemist77

Member

January 24, 2014 at 9:57 am in reply to: Sunscreen with Avobenzone

oops my bad, didnt read properly. How about replacing alcohol partially with cyclomethicone, cutting down on alcohol may increase the milkiness and at the same time cyclomethicone would aid in increasing the milky appearance. Dont need to change a lot in this, if doesnt work out then try other better options. Cyclomethicone or any light ester wouldnt feel heavy at the same time. Recently I came across Isoamyl Laurate and it had the lightest feel on skin. If I recollect from previous posts by Chemicalmatt he once mentioned c12-15 alkyl benzoate as one of the best emollient esters and at the same time a very good aid as a solubilizer. Correct me if i m totally wayward on this.

Chemist77

Member

January 24, 2014 at 5:04 am in reply to: Effect of using silicones, SLS, SLES on ethnic hair, and what do you think of the co-washing trend?

@vitalys they sell back the fantasies of customers to them, simple. :-)

Chemist77

Member

January 24, 2014 at 2:29 am in reply to: Effect of using silicones, SLS, SLES on ethnic hair, and what do you think of the co-washing trend?

@vitalys yes I have seen few products in the form of light and transparent waxes and most of them have ceteareth 25, easy to wash off after styling. Maybe a related concept that you have mentioned.

Chemist77

Member

January 24, 2014 at 1:21 am in reply to: Effect of using silicones, SLS, SLES on ethnic hair, and what do you think of the co-washing trend?

@Vitalys you mean a light spray like we have body milks, effective but not heavy.

Chemist77

Member

January 22, 2014 at 10:39 am in reply to: Best Moisturizing Oils/Butters for Lip Products?

@mikebavington great link for a ready reckoner.

Chemist77

Member

January 21, 2014 at 2:12 pm in reply to: Kaolin Mask

@DavidW I am gonna try the same combo, waiting for the samples to arrive.

Chemist77

Member

January 21, 2014 at 12:14 pm in reply to: Best Moisturizing Oils/Butters for Lip Products?

@Bobzchemist I remember a product from Revlon few years back and it had a gloss with a sealant for long or smudgeproof wear. Think they used Dermacryl 79 with an evaporating solvent to seal the oil coating of gloss.

Chemist77

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