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I received a tester of **Witch Hazel Alcohol-Free Toner** (Order #009204), and the cap had black stains and dust. I have cleaned it myself, but I wanted to provide feedback to...
Regarding a list of ingredients including Pep-Coll, Argireline, Adenosine complex, Apple stemcell, Soy Extxact, Bata glucan, Dmae, and L-Tyrosine: 1. Which of these ingredients...
What material are the amber plastic bottles made of, and are they suitable for packaging Vitamin C serum and other acids like Citric Acid and Glycolic Acid (up to 50% concentration)?
I have two questions regarding formulation: 1. Normally, a transdermal base is used at 80-90%, but due to its stickiness, can I use a lower percentage? And can I use other...
How to use the following ingredients? Specifically, can they be mixed with water or applied directly, and what are the recommended usage percentages and methods? * Galactomyces...
Regarding the `STtabilized Vitamin C` product, the description states that no other substances should be added as it affects stability. However, the gel texture is very thick...
I tried mixing Hydroxyethyl Cellulose (HEC) to make a clear gel, but the gel only formed at the bottom. How should I properly mix HEC to get a uniform gel texture?
Why doesn't fragrance oil completely dissolve in pure mineral oil (such as baby oil), causing separation? How can this separation issue be resolved to create a clear, uniform solution?
I am developing a whitening and anti-aging serum using Silky Serum Base. I have the following formula structure and questions: **Formula Structure:** * **Part A:** * Silky...
Based on the previous suggestion of using Sugar Gel (Sucrose Ester) to create an oil gel that turns milky when it hits water, I want to confirm: * Will the formula be clear and...
Based on the topic "Salicylic Acid 2% Toner", I have two questions regarding the formulation: 1. Is the following mixing procedure for the toner correct? * Combine 1. Salicylic...
What is the lightest and fastest absorbing natural oil?
I am developing a water-based gel formula with the following ingredients: * Green Tea Extract (Hi-EGCG™) 5% * Calendula Extract * Cucumber Extract * Disodium EDTA * Xanthan Gum...
I have Glycolic Acid 70% (25g syringe) that I bought a while ago but haven't used. I remember there was a ratio guide, but I can't find it now. I would like to ask: 1. What is...
I have questions regarding cosmetic formulation: 1. How can I improve the spreadability and reduce the stickiness of my formulation? Would adding 5% Ethoxydiglycol be more...
How to formulate a cream with a butter-like texture using `Glyceryl Stearate SE` via the Hot Process method? What are the necessary steps and key ingredients?
When formulating, if one ingredient (Ingredient A) already contains a preservative (Preservative E) at a certain concentration, and I add Preservative E separately to the final...
I am developing a face primer formulation and would like to understand the use of `Hectorite Oil Gel` and `Hectorite Silicone Gel`. 1. Can these Hectorite gels be used in face...
Based on my understanding, is the following correct regarding the process of making cosmetic formulations using specific emulsifiers? 1. **Making a cream (Oil-in-Water...
Regarding cream eyeshadow formulation using a silicone base thickened with `Hectorite Silicone Gel™` (which helps suspend pigments in silicone), if only `Hectorite Silicone...
