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Safety and Classification of "Dangerous Drug" Distilled Water for Cosmetics
Can distilled water labeled as "dangerous drug" be used for mixing cosmetics? If it is essentially pure water, why is it classified as a "dangerous drug" by the FDA?
Effect of MatteSilica™ in Oil-Containing Cream Formula
When using `MatteSilica™` (Silica for oil absorption) in a cream formula that contains oil, will the `MatteSilica™` absorb the oil within the formula itself? If so, how does...
Formulation Challenges: Encapsulated BHA in Witch Hazel/Hydroxyethyl Cellulose Gel and Silky Serum Base
Based on the previous discussion about potential precipitation when combining Witch Hazel and Hydroxyethyl Cellulose for a gel base, I have two questions: 1. Is it possible to...
Vitamin A (Retinyl Palmitate) Usage Percentage for Anti-aging
What is the recommended maximum usage percentage for Vitamin A (retinyl palmitate / retinol palmitate) and which category does it belong to?
Cream Formulation Issues with High Electrolytes and Mixing Procedure
I am making a cream formulation using `Light Cream Maker™` with the following ingredients: * Sodium PCA 5% * Sodium Lactate 3% * Rosehip oil * Shea Butter My procedure was to...
Absorption of Argireline and Hyaluronic Acid Nano in Toner
I have formulated a toner containing the following ingredients: * Argireline (Peptide) * Hyaluronic Acid Nano * WaterLock™ * Alpha Arbutin I plan to apply this toner by...
Adjusting Whitening and Anti-Wrinkle Cream, Softening Cream, and Eye Cream Formulas
I have three cosmetic formulations and would like advice on adjusting them. Specifically: 1. How should I incorporate Rose Hip Oil into all three formulas? 2. For the 'Soft and...
Thickening a Homemade Cream Scrub
I am making a cream scrub by adding coffee grounds, sugar, coconut oil, and shea butter to a pre-made cream base. This addition caused the cream base to become too thin. I also...
Formulating a Multi-Benefit Cream for Acne, Oil Control, Brightening, and Hydration
I am formulating a cream with multiple goals: reducing acne, controlling oiliness, brightening skin, and providing hydration. I have several questions regarding ingredient...
Safety Precautions for Glycolic Acid 70% Dilution
Could you please explain the safety precautions required when diluting Glycolic Acid 70% and clarify how its hazard level compares to concentrated sulfuric acid?
Skincare Gel Formulation Feasibility and Mixing Order
I would like to ask about the feasibility and mixing order of a skincare gel formulation using the following ingredients and percentages: * Licorice 1% * EGCG 5% * Centella...
Hair Root Nourishing Serum Formulation: Oil/Silicone Base and Water-Soluble Actives
I am developing a hair root nourishing serum. I plan to use a base formula consisting of Cyclopentasiloxane, Dimethicone, Fractionated Coconut Oil, and Vitamin E. * Is this...
Proposed Cream Formulations: Anti-Aging and Brightening + Moisturizing
Based on previous advice regarding a complex formula combining many ingredients for anti-aging, brightening, and moisturizing, I have decided to split the formulation into two...
Hand Cream Formulations for Dry Airplane Air
Could you suggest hand cream formulations suitable for the dry air on airplanes? I prefer something non-sticky, perhaps a gel, using ingredients like `Pro Polymer`, `MOIST72`,...
Adding Water-Soluble Ingredients to Cream Base
Can water-soluble ingredients be added directly to a cream base? What factors should be considered, and how can I test for proper incorporation and stability?
Understanding Ionic/Non-ionic Properties, Ingredient Compatibility, and Disodium EDTA in Cosmetic Formulations
Could you please explain the difference between ionic and non-ionic ingredients in cosmetic formulations? Specifically, I would like to know: * What defines an ingredient as...
Alternative Ingredients and Formulation Adjustment for Liquid-to-Matte Lip Product
I am trying to make a liquid-to-matte lip product. I need help finding alternative ingredients for the following: * `Trimethylsiloxysilicate` * `Hydrogenated Polyisobutene` *...
Adjusting Gel/Cream Texture and Formula Conversion
I have a gel formula using Pro Polymer that feels too sticky. How can I reduce the stickiness? Can I change this gel formula to a cream texture? If I want to use Light Cream...
Double Hyaluron Liquid Usage Percentage and Calculation in 50g Cream for Normal/Dehydrated Skin
I want to make a 50g cream formulation using Double Hyaluron Liquid for normal/dehydrated skin. According to some information, the recommended usage is 1-2%. I tried a simple...
Issues and Behavior of pH Meter
I have some questions about the behavior of my pH meter when measuring substances like serum. I've observed the following: 1. When I turn the meter on without immersing it in...