Members Directory - Chemists Corner

andriannav

Member

October 6, 2022 at 9:01 am in reply to: GEOGARD ECT PRESERVATIVE

PhilGeis

what do you mean??

andriannav

Member

September 30, 2022 at 8:15 am in reply to: GEOGARD ECT PRESERVATIVE

PhilGeis

i known that the ph of our face skin is 4,5-5,5

right??

that’s why i want iti to be ph around 5

andriannav

Member

September 29, 2022 at 7:35 am in reply to: GEOGARD ECT PRESERVATIVE

MarkBroussard

can i leave the pΗ for face cream at 3.8? Ι think it's better at 5

andriannav

Member

August 21, 2022 at 3:21 pm in reply to: How do determine cosmetic expiration dates

PhilGeis said:

Here’s protocol of the type major companies use — https://cosmeticseurope.eu/files/5914/6407/8121/Guidelines_on_Stability_Testing_of_Cosmetics_CE-CTFA_-_2004.pdf

thanks!!

andriannav

Member

August 21, 2022 at 3:21 pm in reply to: How do determine cosmetic expiration dates

Perry said:

Stability testing

If the cream is stable for one year then PAO is 12months??

andriannav

Member

September 3, 2019 at 7:23 pm in reply to: hair mask

Cetearyl Alcohol and Behentrimonium Methosulfat??

andriannav

Member

September 3, 2019 at 7:20 pm in reply to: hair mask

it’s a rinse-off product…which emulsifier do you recommend??

andriannav

Member

September 3, 2019 at 6:27 pm in reply to: hair mask

Perry said:

What else is in the formula?

AQUA

Behetrimonium
Chloride

Cetrimonium
Chloride

Sodium
Phytate

Betaine

Panthenol

BABASU
OIL

Cetearyl
Alcohol

Dimethicone

Phenoxyethanol

Cyclopentasiloxane

Hydrolyzed
Wheat Protein

Nubian said:

Kerabase LC

andriannav

Member

January 29, 2019 at 9:18 pm in reply to: viscosity

andriannav said:

How can i measure the viscosity of a cream??i don’t have brookfield viscometer

i have bought that viscometer: Cannon-Fenske Routine Viscometers PSL-Rheotek, but i don’t know how to use it!!

andriannav

Member

June 8, 2016 at 9:05 pm in reply to: SUNSCREEN

thanks!!

andriannav

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