Consultant for Benzoyl Peroxide Shampoo & Chlorhexidine??

Formulating

Consultant for Benzoyl Peroxide Shampoo & Chlorhexidine??

Posted by DavidW on July 27, 2022 at 10:53 pm

I need a consultant who has experience with 2 separate items:

1) Benzoyl peroxide shampoo (Curoxyl BP 42) failing after 1 month accelerated.

2) Thickening a 4% Chlorhexidine Gluconate shampoo enough to hold something called MicroSilver in suspension. Customer sample is about 5,400cps.

DavidW replied 2 years, 3 months ago 5 Members · 9 Replies
9 Replies

ozgirl

Member
July 27, 2022 at 11:33 pm

I’m not a consultant but just wanted to offer a suggestion for your CHG product.

When I was looking for Antibacterial Hand Wash formulations with cationic actives I came across a Lubrizol formulation that used Carbopol SMART 3000 polymer. It is reported to suspend mica as well as thicken.

https://www.lubrizol.com/Personal-Care/Products/Product-Finder/Products-Data/Carbopol-SMART-3000-polymer

I never proceeded as I couldn’t meet the minimum order requirements but it might be worth a look.
DavidW

Member
July 27, 2022 at 11:42 pm

Hi ozgirl

Thanks very much for the info. I will check into it. I appreciate it.
ketchito

Member
July 28, 2022 at 12:53 pm

@DavidW Just out of curiosity, those are pet products, right?
DavidW

Member
July 28, 2022 at 2:10 pm

@ketchito Why do you ask?
ketchito

Member
July 29, 2022 at 2:31 pm

@DavidW Those ingredients are not commonly seen in hair cleansers. Hydrogen peroxide is used in oxidizers, as part of the dying process (EU requires some warning to be put in the label). It is also very unstable and requires very low pH and the use of some stabilizers. In a shampoo, I don’t see how it could work (it’s very water soluble and the product rinses off, so contact time would be limited -if any- to interact with hair).

Chlorhexidine salts are used as preservatives in cosmetics, al low doses. The amount you’re using makes me think of an antiseptic. I haven’t seen a shampoo with that level of Chlorhexidine, and that’s why I thought it might be for veterinary use.
MarkBroussard

Member
July 29, 2022 at 3:44 pm

@ketchito

You are confusing Hydrogen Peroxide and Benzoyl Peroxide … Benzoyl Peroxide would be used in an acne product.
amitvedakar

Member
July 30, 2022 at 5:06 am

4% chlorhexidine is Surgical Scrub & it’s a Drug Product. Normally 20% active

Benzoyl Peroxide is also acne product. & category country specific.

40% to 60% active.
ketchito

Member
August 1, 2022 at 2:03 pm

MarkBroussard said:

@ketchito

You are confusing Hydrogen Peroxide and Benzoyl Peroxide … Benzoyl Peroxide would be used in an acne product.

@MarkBroussard You’re right, my apologies. Funny I made that mistake, since I used to work in the past using Benzoyl peroxide to synthesize azides. My bet.
DavidW

Member
August 1, 2022 at 2:15 pm

@ketchito They are both veterinary products.