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Using Vitamin C on Sensitive Skin After AHA Treatment

My skin is currently very sensitive and thin due to using a strong AHA treatment, experiencing peeling and irritation. Is it safe or advisable to use fresh Vitamin C every...

Cosmetics Acidic Formulation Peeling Effect Sensitive Skin Skin Barrier Repair Skin Irritation
Posted by mayurin-tengya
Adding Additives (EDTA, BHT, BHA) to Cold Process Soap Bar and Stability Issues

I have the following cold process soap bar formulation: * **Expected Soap Weight:** Approximately 450 g * **Ingredients:** * Coconut Oil: 300 g * Soda Ash Flakes 98%: 50.76 g *...

Cosmetics Bar Soap Ingredient Addition Rancidity Solubility Stability
Posted by sasikarn88
Spot Treatment Gel for Exfoliation and Dark Spots

I am developing a **spot treatment gel formula** to accelerate skin exfoliation for dark spots from scars and acne. I would like to know the appropriate concentration for...

Cosmetics Exfoliation Gel Hyperpigmentation Spot Treatment Usage Percentage
Posted by pantawan_kantiyatep
DIY Skin Brightening and Stretch Mark Cream Formulation & Manufacturing Questions

I am developing a skincare cream for personal use, aiming for skin whitening, reducing stretch marks, improving skin smoothness, and slight firming. Based on previous feedback,...

Cosmetics Cream DIY Formulation Private Label Manufacturing Skin Brightening Stretch Mark Reduction
Posted by jejeemixze
DIY Herbal Cleansing Toner Recipe

Could you provide a DIY recipe for a herbal cleansing toner, including recommended ingredients like Witch Hazel and Calendula extract, their usage percentages, and instructions?

Cosmetics DIY Formulation Natural Ingredients Pore Reduction Soothing Effect Toner
Posted by iewja44
Sunscreen Gel Formulation and Technical Questions

A user is asking several questions about formulating a sunscreen gel with the following ingredients: * Water * MatteSilica™ * Pro Polymer * Titanium Dioxide Nano EasyDisperse™...

Cosmetics Clumping Gel Mixing Procedure Particle Size Sunscreen Formulation
Posted by borifle
Suitability of Soy Lecithin, Beeswax, Xanthan Gum in High Water Formulation

I have a formula with 4-5% oil and 78% water. Is **Soy Lecithin** suitable for emulsifying this formula, or does it require a very high amount? Can **Beeswax** or **Xanthan...

Cosmetics Emulsification Emulsifier High Water Content Ingredient Suitability Thickener
Posted by momo2638
Formulating Beta Glucan for Sensitive Skin: Toner vs. Gel/Cream

I would like to formulate a product using Beta Glucan (Saccharomyces cerevisiae extract) for sensitive skin. Can I make it as a toner? If not, what other product forms like gel...

Cosmetics Cream Gel Precipitation Sensitive Skin Skin Barrier Repair
Posted by mojibeau
Gel Base Formulation, Stability, and 1000g Batch Calculation

I would like a formula to create a stable gel base (`สารตั้งตัน`) that does not revert (`ไม่คืนตัว`). I plan to produce a 1000g batch. Could you please provide the formula and...

Cosmetics Amount Calculation Cosmetic Formulation Gel Gel Base Stability
Posted by armylove7899
Formulation Issues: Solubility, Texture, and Separation in Melasma Serum

I am developing a serum formulation for melasma treatment using **Silky Serum Base Plus** at 50% concentration. I also included the following ingredients: * Tranexamic Acid *...

Cosmetics Formulation Adjustment Melasma Treatment Serum Solubility Texture
Posted by phanchuka
Stability of Vitamin C (L-Ascorbic Acid) with Ferulic Acid and Vitamin E

Regarding the general formulation, how effective is the combination of Ferulic Acid and Vitamin E in helping to reduce the oxidation of Vitamin C (L-Ascorbic Acid)?...

Cosmetics Antioxidant Formulation Adjustment Oxidation Serum Stability
Posted by armylove7899
Adding Preservative and Mixing Method for Silicone-Based Serum, Plus Ordering Process

I have a serum formula containing water-soluble ingredients like REGU®-AGE, Aloe Vera Extract, Vitamin B3, and WhiteCumin™. The expert mentioned it appears to be a...

Cosmetics Cold Process Formulation Ordering Preservation Serum Silicone-based Formulation
Posted by irada_oum
Acne Clearing Clay Mask Formula

Could you provide a formula for an acne face mask, specifically a clay mask, that helps with dissolving clogged pores and reducing skin oiliness? I'm interested in ingredients...

Cosmetics Acne Treatment Clay Mask Clogged Pores Formulation Examples Oil Control
Posted by duangdao1102
Warming Sensation in Cleanser and Sprayability of Hyaluron Lotion

I have two questions regarding cosmetic formulations: 1. I tried making a mild facial cleanser for sensitive skin based on the formula found at...

Cosmetics Facial Cleanser Lotion Spray Viscosity Warming Sensation
Posted by venusniki
Titanium Dioxide in Soap & Wash-Off Lotion: Whitening & Sun Protection Claims

Following a discussion about misleading cosmetic claims regarding products showing a temporary whitening effect after washing off, I have some questions based on common...

Cosmetics Formulation Adjustment Lotion Skin Brightening Soap Sun Protection
Posted by nuaom5562
Improving Melasma Formula: Adding Gentle & Effective Ingredients

I am developing a formula for melasma. My previous attempt caused acne, possibly due to strong ingredients like Activated Resorcinol. My current base formula includes Pro...

Cosmetics Formulation Adjustment Ingredient Suggestion Melasma Treatment Serum Skin Irritation
Posted by pimkets29
Formula Review for Anti-Aging, Lifting, and Moisturizing Cream (Combination Skin)

I would like to request a review and suggestions for improving my cream formula. My goal is to create an anti-aging cream that helps reduce and prevent wrinkles, provides a...

Cosmetics Anti-aging Cream Hydration Non-sticky Texture Skin Tightening
Posted by sootthisak.ch
Review of Beginner Lotion Formula with Whitening & Extracts

As a beginner, I would like to ask for a review of the lotion formula I intend to make. Please check if the formula is suitable and provide any additional suggestions. Here is...

Cosmetics Formula Review Lotion Regulatory Compliance Skin Brightening Stability
Posted by wah_mali
Shampoo Formulation Issues: Precipitation and Hair Stiffness

I am formulating a shampoo using natural extracts, specifically Kaffir Lime and Butterfly Pea. I encountered two main issues: 1. The natural extracts precipitate in the...

Cosmetics Conditioning Natural Extract Precipitation Shampoo Shampoo Formulation
Posted by chuthamart.k
Yellow Stains from Anti-sweat and White Cast in Sunscreen

I have two questions: 1. Is it true that anti-sweat ingredients can cause yellow stains on white clothes? If so, how can I prevent or remove them? 2. My sunscreen formula uses...

Cosmetics Deodorant Formulation Adjustment Staining Sunscreen Formulation White Cast
Posted by donotgiveup12345601