คำถาม-คำตอบ
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Natural Oil vs. Cream for Preventing Stretch Marks During Pregnancy
I am pregnant and want to prevent stretch marks. Which is better for this purpose: natural oil or cream? What are the benefits of each?
L-Ascorbic Acid Stability for Body Whitening & Facial Serum Review
I am interested in using L-Ascorbic Acid for body whitening. I previously tried a body lotion with Alpha Arbutin, Vitamin B3, and Glucosamine (N-acetyl-D) but was not fully...
Emulsifying Propylene Glycol and Cyclomethicone without water using Warp Cream Maker
Can Propylene Glycol, Cyclomethicone, and Warp Cream Maker be emulsified without water? What is the resulting texture, and how can it be thickened without adding water?
Addressing Acne, Skin Barrier, Sunscreen Pilling, and Adding Ingredients to a Formula
I am using a `Tester` product and have several questions regarding its use, potential side effects, combining it with other products, and modifying the formula: * I have...
Gel Formula Review and Suggestions for Combination, Dehydrated, Acne-Prone Skin
I have a gel formula for clear, acne-free skin and would like to ask for a review. Can this formula be made? What is the correct mixing order? Also, if I add other extracts,...
Serum Formulation with Salicylic Acid, Lactic Acid, and Copper Peptide Compatibility
I am formulating a serum with the following ingredients: * Encapsulated Salicylic Acid (6.6%) * Lactic Acid (10%) * Sterile Water I would like to know if I can add Copper...
How to Make Detox Shampoo
I want to make a detox shampoo for personal use and already have a shampoo base. What ingredients should I add to a shampoo base (like `SweetWash™ Hair`) to give it detoxifying...
Adding Tranexamic Acid 4% to Eye Gel Formulation
I have a gel formulation with the following ingredients: * Double Hyaluronic (Hyaluron) Gel * **Whitening:** Glucosamine (N-acetyl-D) 4% * **Whitening:** Nanowhite 5% *...
Body Cream Formulation for Pregnancy: Adjusting Texture for Stretch Mark Prevention
I am developing a body cream formulation for use during pregnancy, specifically to prevent stretch marks. My initial formula is as follows: * Shea Butter 8% * Glycerin 5% *...
Revised Serum/Cream Formulation: Mixing, Refrigeration, and Shelf Life of Pep®-Coll
I have revised my water-based serum/light cream formula with the following ingredients: * Water-soluble ingredients (Beta Glucan, Green Tea Extract, Natural Moisturizing Amino...
Adding Ingredients to Serum Base for Melasma and Freckles
I have a Hyaluronic Acid Day Serum base and want to add ingredients to reduce melasma and freckles. Which ingredients are suitable, and how should I mix them into the base?
Modifying Sunscreen Cream Formula for Water Resistance, Texture, and Natural Ingredients
I have the following sunscreen cream formula: * Zinc Oxide 5% * Titanium Dioxide 5% * Cyclomethicone 15% * Dimethicone 20% * Light Cream Maker 1.5% * Water 53.5% Based on this...
Question about TH product
ขอโทษหากมีการถามซ้ำกับผู้อื่น น่ะค่ะ พอดีหาไม่เจอ ขอสูตรหน่อยค่ะ สภาพผิวหน้าผู้ใช้ เป็นผู้หญิง อายุ 40 กว่าปี ผิวมัน เป็นฝ้าลอย มีรอยดำ และรอยแดง เนื่องจากโดนแดดมานาน...
Formulating Skin Brightening Lotion & Sunscreen Cream, and Adding Ingredients to Ready Cream
I have several questions regarding cosmetic formulation and ingredient usage: 1. How can I formulate a **skin brightening body lotion**? 2. How can I formulate a **face cream...
Appearance of Lauryl Glucoside in Cold Temperatures
Why does Lauryl Glucoside appear cloudy, viscous, or solid (like wax) at cold temperatures, and is this normal or a product defect?
Pressed Powder Formulation and Manufacturing Method Inquiry
Could you please provide information and guidance on how to create a pressed powder formulation? I am looking for a formula and recommendations on the method for manufacturing...
Formula Review for Dark Spots and Brightening Cream
I have formulated a cream for treating dark spots, brightening skin, and addressing acne marks. Could you please review the formula and advise on the following points? Here is...
Revised Lifting Serum Formula for Combination Skin
I have developed a formula and mixing steps for a lifting serum. Could you please review it and provide feedback? My proposed formula is: 1. Cyclomethicone 35% 2. Moringa Seed...
Compatibility and Formulation of Vitamin C, Glucosamine, Glutathione, B3, Tranexamic Acid Mixture
Can the following ingredients be mixed together? * Vitamin C (L-ascorbic acid) * Glucosamine (N-acetyl-D) * Glutathione (L-Glutathione Reduced) * vitamin b 3 * tranexamic acid...
Anti-Wrinkle Eye Gel/Essence Formulation with Argireline & Matrixyl 3000 and Water Purity Question
I am 33 years old and have fine lines under and around my eyes. I prefer a gel or essence texture for an anti-wrinkle product. My forehead skin is also quite dehydrated and...