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Waterproof Sunscreen with Foundation Formula (Smooth Texture)
Could you please provide an example formula for a waterproof sunscreen with foundation that has a smooth texture? I am looking for a formula that is easy to make and provides...
Revised Formula Compatibility and Preservative Suggestion
I have revised my formula. Could you please review its compatibility and advise if a preservative is needed? If so, which preservative do you recommend and at what percentage?...
Mandelic Acid 5% Gel Formulation for DIY Use
I am interested in using Mandelic Acid. I understand high concentrations like 30% require professional supervision. Could you provide a formulation or guidance for a DIY...
Daily Moisturizer Formulation for Acne-Prone, Oily Skin
I want to create a daily moisturizer (day and night) for acne-prone, oily skin with issues like clogged pores, occasional inflammation, large pores, oiliness, blackheads, and...
Achieving White Color in Oil-Based Soap with Titanium Dioxide
I am making an oil-based soap with glycerin and used `Titanium Dioxide 250nm Pigment (Non-Treated)` to make it white, but it did not achieve the desired whiteness. Why is this...
Review and Advice for Anti-Aging Spray, Acne Toner, and Powdery Feel Cream Formulas
I would like to create three cosmetic products and need advice on the formulas and mixing methods. I have already purchased the ingredients. Some ingredients are expiring in...
Choosing Between LHA and Liquid Azelaic™ for Dark Spots and Exfoliation
Initially, I considered using AHA for its exfoliating properties to address specific dark spots on my face. However, upon reviewing the options, there seem to be ingredients...
Cream Formulation: Adding Extracts, Shelf Life, and Color Stability
I would like to ask about formulating a cream: 1. Can natural extracts (herbs) be mixed into a cream formulation? 2. What is the typical shelf life of a homemade cream? 3. When...
Gentle, SLS-Free Baby Shampoo Formula
Regarding a gentle, SLS-free baby shampoo formula, I have two questions: 1. What percentage of preservative should be added? 2. How can I increase the foam to be like adult shampoo?
Eye Stinging from Makeup Remover Ingredients and Oil-Based Alternative
I am formulating a makeup remover and am concerned about eye stinging from ingredients like `Makeup wash` (PEG-6 Caprylic/Capric Glycerides) and `Coco Wash` (PEG-7 Glyceryl...
Do Ingredients with the Same INCI Name Have Equivalent Properties?
Do ingredients with the same INCI name have equivalent properties?
Addressing Cream Separation with Fractionated Coconut Oil and Emulsifiers
I am making a cream using Fractionated Coconut Oil (Caprylic/Capric Triglyceride). The staff recommended this type of coconut oil so the cream wouldn't solidify when...
Achieving a Natural Dewy Glow in BB Cream
How can I achieve a natural dewy glow in my BB cream by mixing in powder? What powders can be used, such as MakeGlow™ Powder (Bismuth Oxychloride) or Mica, and what are their...
Physical Sunscreen Separation Issue After Following Recommended Recipe
I followed the recommended formula for physical sunscreen from the pinned post, but the sunscreen separated. I tried making it a second time, and the same problem occurred. The...
Shaving Gel Formula with Polyglide™
# Shaving Gel Formulation with Polyglide™ I would like to create a shaving gel and incorporate **Polyglide™** as an ingredient to provide lubrication and a smooth feel for the...
Reed Diffuser Base Compatibility with Fragrance Oil (Avoiding Alcohol)
My fragrance oil from Hong Huat separates when mixed with **Reed Diffuser Base Type 1**. I want to avoid using **Ethyl Alcohol**. Will switching to **Reed Diffuser Base Type...
Adjusting pH of Stabilized Vitamin C Serum for Stability and FDA Compliance
How can I adjust the pH of **Stabilized Vitamin C (Natural-C Glycol™) Serum** to meet FDA requirements (pH 3.0 or higher) while maintaining its stability? The staff mentioned...
Serum Formulation for Dark Spots, Acne Marks, and Oily Skin
I have developed a serum formulation for dark spots, acne marks, and oily, acne-prone skin. I used ingredients including: * Niacinamide 10% * Zinc PCA * Silicone Gel 10% *...
Preservatives for Water-Based Mouthwash
What are suitable preservatives for a water-based mouthwash formulation?
Ingredients to Prevent Cream Lipstick from Hardening and Drying
I am making a cream lipstick and packaging it in a jar. The problem is that the cream lipstick becomes hard and dry. Which ingredients can be added to maintain the lipstick's texture?