คำถาม-คำตอบ

I have a cosmetic formula given in percentages for an essence. When calculating the amount for powdered ingredients like Tranexamic Acid based on the total batch weight (in...

How to prevent separation in a shower gel formulation (water/Carbopol base) containing Apricot Kernel Oil? My formula separates after standing for 30 minutes. The formula...

I purchased the Vitamin C E Ferulic Pre-Mix Kit in July but haven't mixed it yet. What is the shelf life of the kit before mixing, and how should it be stored? What is the...

I would like a simple formulation for a lip balm that is not just a regular lip balm, but includes whitening and moisturizing active ingredients. Could you provide a...

I want to create a mineral makeup foundation with a mousse texture. I have two potential formulas: 1. MMU foundation + Satin Mousse 2. MMU foundation + Isododecane + Silicone...

What ingredients are recommended for treating dry and cracked feet, especially those caused by exposure to water and cement, and in cold weather? How should these ingredients be used?

Based on the two formulations below, I have the following questions: 1. Can both formulations be used on the face? 2. What are the nourishing and repairing properties of each...

I need advice on a Vitamin C serum formulation. I want a Vitamin C serum similar to one I used before. The original formula is listed as follows: ``` Salicylic acid, ascorbyl...

Regarding sheep placenta as a cosmetic ingredient, does it truly help make skin bouncy and reduce wrinkles? What are the considerations regarding its use and legality?

Can I mix Vitamin C Ester at 8% concentration with 92% carrier oil, such as Rose Hip Oil or Jojoba Oil, and use it directly?

I would like to ask about using Retin-A for wrinkle reduction. 1. If I use Retin-A for wrinkle reduction, can I apply it every other day? Will it be as effective as applying it...

I am developing a skin brightening lotion formula and would like to ask for a review. The ingredients and steps are as follows: * **Ingredients:** * Shear Butter (organic...

I am developing a skin nourishing gel formula for my mother, who has **dry, sensitive skin** with **many wrinkles, deep nasolabial folds, and freckles**. I want the gel to...

I would like to create a home-made shampoo for sale with the following desired properties: * Pearlized texture * Makes hair soft, tangle-free, and helps solve tangled hair...

I am developing a skincare formula for my mother's facial skin to help reduce melasma, freckles, and dark spots, and make her skin brighter. My initial idea is to use the...

Which whitening agents can be added during the bar soap making process? Also, can the oils available on this website be used for making bar soap?

Regarding a cream formulation for stretch marks and scars, I have two questions: 1. Can Propolymer be added to this formula to achieve a bouncy cream texture? 2. Is using 7%...

Regarding the gel or liquid raw materials sold by MySkinRecipes: 1. Can you confirm that these raw materials are free from steroid contamination? 2. Are tests conducted for the...

I have developed a serum formula for oily but dehydrated skin, aiming to treat acne, reduce acne marks, and brighten the skin. I would appreciate a review of the formula and...

I am developing a gel formula for a night cream targeting combination skin concerns such as brightening, reducing dark spots, controlling acne and oiliness, tightening pores,...