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Aloe Vera Gel Formulation Review and Preservative Concerns
Could you please review my aloe vera gel formula and provide feedback? I used the following ingredients and percentages: * Pro Polymer™ 5% * Aloe Vera Extract (extraction ratio...
Skincare for Melasma and Oily Skin After Stopping Cream
What is the recommended skincare approach for melasma and oily skin after stopping a previous cream for 2 months, considering potential residual irritation? What ingredients...
Packaging for Cosmetic Stability: Protecting from Air, Light, and Temperature
Regarding the packaging of cosmetic products, particularly concerning ingredient stability and protection from environmental factors like temperature, light, and air: 1. How...
Formulating a Toner for Visible Cleansing Residue
What ingredients or formulation strategies should be used to create a toner that effectively lifts impurities and leaves visible residue (dirt, oil, makeup, dead skin cells) on...
Physical Sunscreen Formulation: Separation and Cleansing Issues
I have a physical sunscreen formulation that separates after about 30 minutes. The formula is: 1. Zinc Oxide 5% 2. Titanium Dioxide 5% 3. Cyclomethicone 40% 4. Dimethicone 16%...
Combining BHA Toner Ingredients with Serum: Formulation Challenges and Recommendations
I am formulating a serum for whitening, acne reduction, and oil control using the following ingredients: * Vitamin B12 (VB12) 5% * Vitamin B5 * N-acetyl Glucosamine * Zinc PCA...
Adding Vitamin B3 and N-acetyl Glucosamine Powders to Cream Base
I want to add Vitamin B3 powder and N-acetyl Glucosamine powder to an existing cream base. Do I need to dissolve them in water first, or can I add them directly to the cream...
Effective pH range for Encapsulated Salicylic Acid (Timed-Release)
What is the effective pH range for Encapsulated Salicylic Acid (BHA, Timed-Release) in a formulation, and does the manufacturer specify a single optimal pH point within this range?
Preservatives for Saponified Soap (High pH, Heat)
I am making bar/liquid soap using the saponification method (oil + lye) and want to add natural ingredients like tofu, cucumber, or aloe vera, which can cause the soap to spoil...
Emulsifiers for Adding Natural Oils to Liquid Soap
I want to add natural oils to my liquid soap formula to help with skin dryness. Since ClearClean is not available, what alternative emulsifiers or ingredients can I use to...
Water-Based, Silicone-Free Physical Sunscreen Ingredient
How can I formulate a physical sunscreen with a light, non-sticky texture (similar to the "ครีมกันแดด SPF35/PA+++ เนื้อเบา ไม่เหนอะหนะ" recipe) that is water-based and...
Analysis and Formulation Advice for Natural Skin Cream
I am planning to create a natural skin cream using the following ingredients: Beeswax, Soy lecithin, Shea butter, Alpha arbutin, Niacinamide, Licorice powder, Tomato extract,...
Inquiry about Makeup Base vs Primer and Formulation Guidance
What is the meaning of "Makeup Base"? Does it refer to "Primer"? Could you please provide more information, including examples of product names and ingredients from market...
White Residue in Vitamin C Silicone Serum
Regarding a Vitamin C serum formulation containing L-Ascorbic Acid and Vitamin C Ester in an anhydrous base of Isododecane and silicone: When applied to the face, do the...
Stabilized Vitamin C pH Adjustment and Stability for FDA Registration
Regarding the ingredient `Stabilized Vitamin C (Natural-C Glycol™)` which has an original pH of 2-3: 1. For cosmetic registration with the FDA, the pH needs to be at least 3.5....
Sunscreen Formulation: High Oil Phase, Emulsifier, Stability, and Antioxidants
Based on a proposed sunscreen formula: * SPF Protect Ultra II 20% * LipidSoft Lite 10% * DHHB 10% * Oxybenzone 10% * Vitamin E 1% * Water, Light Cream Maker 1%, Preservative I...
Gentle Cleanser for Oily, Acne-Prone Skin with Clogged Pores
I need advice on formulating a gentle facial cleanser suitable for oily skin prone to inflammatory acne and clogged pores. My current cleanser doesn't seem to completely clear...
Serum Formulation Issues: pH, Stability, Viscosity, and Azelaic Acid Precipitation
I am developing a serum formulation using **Silky Serum Base** with the following ingredients: * **Azelaic Acid (Liquid Azelaic™)** 10% * **Vitamin B3 (Niacinamide)** 5% *...
Vitamin C vs Alpha-Arbutin for Skin Brightening
Based on personal experience finding **15% L-Ascorbic Acid** effective for skin brightening compared to Vitamin B3, which is generally considered more effective for skin...
Resorcinol Solubility in LipidSoft and Adding WaterGuard to Sunscreen
I have two questions regarding cosmetic formulation: 1. Can cosmetic-grade resorcinol derivatives, such as Activated Resorcinol (4-Butyl Resorcinol), be dissolved in other...