คำถาม-คำตอบ

I am making a gel formulation with Mandelic Acid. I am using Pro Polymer as the gel maker and Sodium Bicarbonate to adjust the pH to 5. However, I am getting small gel lumps in...

Is it necessary to add a preservative to a small batch of cosmetic formula (e.g., 100g) if it is intended to be used within approximately one month?

What are the effects of using Calcium Pantothenate at high concentrations in a formulation, specifically regarding its impact on: * Product viscosity or texture? * Skin feel,...

I am developing a serum for my combination/oily, dehydrated, acne-prone, and sensitive skin. My goal is a fast-absorbing, non-sticky texture suitable for both day and night...

I am 20 years old and have under-eye puffiness, dark circles, and wrinkles caused by lack of sleep (not allergies). I would like feedback on the following eye cream...

How to add a water-soluble active ingredient (liquid or powder) at a certain percentage into an Oil Gel base?

I saw a review mentioning that a user didn't feel confident mixing a cream themselves and had a company mix it for them. Is it true that MySkinRecipes offers a custom...

I have created a face cream formula for normal to dry skin, aimed at reducing wrinkles and boosting collagen. Could you please review the formula and the mixing steps? My...

Looking for a herbal shampoo formulation for colored hair with dandruff, specifically one that helps prevent color from fading easily.

I'm developing a DIY BB sunscreen. My initial water-in-oil (W/O) formula with Titanium Dioxide 15nm Liquid (20%), Zinc Oxide 35nm Liquid (8%), Polyethylene Wax (3%),...

I am formulating a lotion sunscreen and would like to know how to add fragrance oil and the preservative Phenoxyethanol SA. I have drafted a formula that includes: * Water *...

Regarding the product [Product Name: Tranexamic Acid ทราเนซามิค แอซิด]: 1. Can it be included in a shower gel formulation? 2. Is its charge positive or negative? 3. Are there...

Does this filtering device require a vacuum source to operate? Can it be used alone for filtering liquids like oil, or do I need additional equipment? What kind of vacuum...

I want to make a natural herbal shampoo. Can I use only `Coco Glucoside` and `Xanthan Gum` instead of chemical shampoo bases? Do I need to use any other components? I want the...

Can Stabilized Vitamin C (Natural-C Glycol™) Serum be used with Skinoren? Will this combination cause the Vitamin C to degrade, and are there any potential side effects like...

I would like to know about using `PE-1 Aqua` with `Pentylene Glycol` and `1,2-Hexanediol`. * Can `PE-1 Aqua` be used together with `Pentylene Glycol` and `1,2-Hexanediol`? *...

I have a serum formula for mature skin (50+) targeting lifting, wrinkles, deep lines, dark spots, pore reduction, and hydration. My skin is dry to very dry. The original...

I made a cream containing 1% Lanofree. After about 6 months, the cream has turned yellow. What could be the cause of this color change?

I am using Easy Hair Styler but find its odor strong. How can I mask the odor? Also, are there other hair fixatives available, perhaps like VP/VA Copolymer, that are more...

Regarding a coffee body scrub formula, I want to remove Potassium Cocoate. Can it be replaced with Clarify-Wash (Sodium C14-16 Olefin Sulfonate) or Sodium Lactate? I am trying...