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Hair Dye Gel Formulation for Grey Hair Coverage
I would like to inquire about a hair dye gel formulation for covering grey hair. Could you please recommend a rough formula? I have not made hair dye formulations before. I am...
Improving Reed Diffuser Performance: Diffusion and Longevity
How can I improve fragrance diffusion and longevity when using Reed Diffuser Base Type 1, considering the effect of adding alcohol and the role of DPG?
Solubility of Ingredients in Propanediol
What is the solubility or dispersibility of Ethylbisiminomethylguaiacol Manganese Chloride (EUK-134), Ascorbyl Tetraisopalmitate, dl-alpha tocopherol (Vitamin E), Glutathione,...
Mixing Tranexamic Acid with Skin Barrier Cream Base and Risk of Separation
Can Tranexamic Acid powder, which requires dissolving in water, be mixed with Skin Barrier Cream Base, and is there a risk of phase separation given that the base is formulated...
Vitamin C Serum Mixing Issue: Separation and Watery Texture
I am making a Vitamin C serum using a specific formulation including water phase, oil phase (with Ascorbyl Tetraisopalmitate and Vitamin E), and a Sodium...
Bakuchiol Solubility in Water-Based Gel
How can Bakuchiol be incorporated into a water-based gel formulation, and can it be dissolved in Glycerin?
Availability of Ingredient Documents (SPCE, MSDS, COA)
Are technical documents such as SPCE, MSDS, and COA available for all ingredients, or how can I check/obtain these documents for specific raw materials?
Ingredient Substitution and pH for Whitening Cream
In a Triple White Cream formula containing Mineral Oil, can Sweet Almond Oil be used as a substitute? What are the differences in results when using Sweet Almond Oil instead of...
Using Fragrance Fixatives: Heat Sensitivity of Perfume Oil
When using fragrance fixatives like Musk Fix or Sugar Fix to improve perfume longevity, is it safe to heat the fixative to 50-60°C before adding it to the perfume oil? Will...
Ingredients for Making Watery Essence (Nam Tob)
What ingredients are recommended for making watery essence or "Nam Tob" products?
Hot Process Emulsifiers for Dimethicone
What hot process emulsifiers, other than Mulse Lotion Maker™, can be used to effectively emulsify Dimethicone in cosmetic formulations?
Tranexamic Acid Discoloration in Cream
Why does **Tranexamic Acid** change color (turn yellow) over the long term when incorporated into a cream formulation?
Facial Massage Cream Formulation for Machine Use
How to formulate a facial massage cream suitable for use with a massage machine, focusing on properties like slip, cushion, and appropriate absorption?
Origin of 4-Butyl Resorcinol
What is the country of origin for the ingredient 4-Butyl Resorcinol?
Maximum Concentration of Ceramide NP in Formulations
What is the maximum recommended concentration for using Ceramide NP in cosmetic formulations, and why might some product bases contain higher percentages like 0.8%?
Sunscreen Formulation: Reducing Oiliness
I have created a sunscreen formula using various silicones, UV filters (Zinc Oxide, Titanium Dioxide), and powders (Mica, BB Micro Silk, Iron Oxides). After mixing, the formula...
Measuring 12H Fix™ and Compatibility with Alcohol Base Containing Additives
Regarding the ingredient 12H Fix™: 1. When using it at a 5% concentration as indicated in the details, should it be measured by **weight** using a scale or by **volume** (ml)...
Formula Review: Texture, Color, and Irritation
Review of a serum formula based on Hyaluronic Acid Gel Base, inquiring about expected texture (liquidity vs serum), color, and potential for skin irritation.
Low-Odor Ingredient Alternatives for Formula Stability
Seeking recommendations for low-odor alternatives to Mild Preserved Eco, Protect OX, and Protect UV to address a strong, unpleasant smell in a cosmetic formula, specifically...
Safety of Salicylic Acid, Niacinamide, and other ingredients during pregnancy
Can pregnant individuals safely use topical products containing Encapsulated Salicylic Acid (BHA), N-Acetyl-D Glucosamine, Safe-B3 (Niacinamide), Calendula Extract, and...