Browse Questions and Answers

Is it safe to use **Oxyresveratrol** at 10% concentration for treating melasma on my mother's skin for a long period? I've noticed it brightens the skin and works faster than...

I have a formula for oily skin that includes oil-soluble ingredients like Activated Resorcinol and Fractionated Coconut Oil. I want to improve the texture and reduce stickiness...

I want to use Microcrystalline Wax in my formulation, specifically for a solid stick product like deodorant. The packaging says to avoid heat and sunlight for storage. Should I...

I have a cosmetic formula with the following ingredients: * Water * Glycerin * PEG-7 Glyceryl Cocoate * PVP * Polysorbate 20 * Ceteareth 25 * PEG 40 Hydrogenated Castor Oil *...

I would like to make an alcohol-free body spray. If I use an oil-based formula, will the scent be long-lasting compared to an alcohol-based spray?

I followed all the steps in a video to make a cream. Everything seemed fine until I added the preservative. After adding the preservative, the cream became liquid and spoiled,...

What ingredients are used in a powder mask formulation that, when mixed with water, becomes a thick gel and then solidifies into a peelable film when dry? Specifically, how...

My cream/lotion formulation **pills** ("กลายเป็นขี้ไคล") when massaged onto the skin. I am using a handheld blender and have tried different emulsifiers. * With **Light Cream...

I have goat milk powder that has turned yellow. I store it in a clear sachet. Why did it turn yellow, and is a clear sachet suitable packaging? I understand that ingredients...

I have two questions about PE-1 Aqua: 1. Does PE-1 Aqua reduce the absorption of oil-soluble active ingredients? 2. Does PE-1 Aqua dissolve in water, especially in a formula...

Regarding a formulation containing **AHA 10%** and **BHA 2%**: 1. Would a pH of 4.08 be sufficiently effective? 2. Is it better to adjust the pH of the product to 3.5?

I need advice on formulating a car wax. My current base is made of: * Carnauba Wax 50% * Fractionated Coconut Oil 20% * Olive Oil 30% The resulting texture is not a soft cream...

I have a formula for a "whitening Day&Night Cream (for Normal Skin)" and would like advice on adjusting its texture and the correct mixing procedure. I want the cream to have a...

I made an AHA 5% cream using 'Light Cream Maker'. The initial pH was 2.7. When I adjusted the pH to 3.5 using Triethanolamine, the cream turned liquid. * Why did this happen? *...

I have developed a cream formulation to treat melasma, freckles, dark spots, dry skin, and wrinkles. Could you please review the formula below and provide feedback on its...

What are water-based skincare products (essences)? How do they compare to creams and gels in terms of texture and composition? What about their absorption and efficacy,...

I have a serum formulation and would like to know if it can be mixed, if pH adjustment is necessary, and what the shelf life is, especially regarding Vitamin C degradation....

Can `Ceramide Complex` be used in a hot process formulation? If so, at which step should it be added, considering its properties?

How to use Disodium EDTA in a formulation? What is the recommended percentage, and how should it be mixed?

What is the main ceramide in the product CeraTouch? What are the differences between Ceramide 1, 3, and 6 II, particularly regarding their absorption into the skin?