คำถาม-คำตอบ

I am developing a cleansing water formula for dry skin and have some questions regarding ingredient selection, alternatives, and general formulation practices. My current...

I noticed something on my skin (as shown in the picture) and I'm not sure what it is. This area of my skin has never had any cream applied before. Could you please identify...

I store skincare products like Rosehip oil and toner in a hot room, but sometimes put them in the refrigerator. Is it true that repeatedly moving them between the hot room and...

I saw a cream formula and want to modify it. The original formula is as follows: 1. Repair Activator 10% 2. Activated Resorcinol 1% 3. Vitamin b3 5% 4. Glucosamine 4% 5....

I am trying to formulate a Vitamin C (L-Ascorbic Acid) serum and have questions about ingredient compatibility and stability, especially when using different bases and...

Can `SPF Protect Plus (TM)` be mixed into lotion or cream that contains water? Should it be added during the oil phase?

I would like to inquire about two Vitamin C serums: `Stabilized Vitamin C (Natural-C Glycol™) Serum (15%)` (50g size) and `Vitamin C E Ferulic pre mix kit` (100g size). 1....

What is the weight of the weights included with the 549 Baht weighing scale model?

How can a mousse-foam texture be achieved in a body cream? Can ingredients like `Creamy Foamer™ (Sodium Methyl Cocoyl Taurate)` create this texture in a leave-on cream, or is...

What are suitable ingredients for formulating liquid and bar soaps that can help reduce body odor and treat acne?

I am formulating a liquid facial soap using the following ingredients and percentages: * Lanry Glucoside = 5.0% * Coci Belaine = 5.0% * Baby Foam = 5.0% * Creamy Foamer = 5.0%...

According to the provided instructions stating that Soy Lecithin should be dissolved in the oil phase at 80°C, which type of oil should be used for dissolving it?

I have an existing cream formula for dry skin that moisturizes and reduces wrinkles. I want to add a whitening ingredient to this formula. Can you suggest a suitable...

What active ingredients are suitable for use on the delicate skin around the eyes to address wrinkles? How should their concentration be adjusted compared to usage on the face or body?

I would like to ask if 100% essential oil can be mixed with pure oil for facial application, and if it will cause irritation. What is the recommended dilution ratio of 2%? Is...

I would like to ask if the following formula is feasible to mix and use, as I am on a limited budget (dorm student) and have removed some ingredients that I might not need....

Regarding makeup removal, is it necessary to use processed oils that are water-soluble, such as `coco-wash` or `makeup-wash` types? Can pure Mineral Oil be used for makeup...

I am developing a gentle facial cleanser formula for sensitive skin and children, which I also want to have some moisturizing properties. The formula uses the following...

I have a formula for an AHA product: * Water: 68.5g * AHA (Glycolic Acid 70%): 29.0g * Pro Polymer: 1.5g * Disodium EDTA: 1.0g * Total: 100g I want to ask if I can add a pH...

I want to create an after-sun product, possibly based on Aloe Vera Gel, that helps soothe skin, reduce burning sensation, and provide moisture after sun exposure. I am...