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Witch Hazel Plus Allantoin: Preservative and pH

I purchased the 200g "Witch Hazel Plus Allantoin" product and plan to mix it with Aloe Vera to use for soothing sunburn. I have a few questions about the Witch Hazel product: *...

Cosmetics Ingredient Interaction Preservation Solution pH Adjustment pH Suitability
Posted by tueyyuet
Legal & Regulatory Considerations for Vitamin C E Ferulic and Pitera Products

I am developing cosmetic products, specifically a Vitamin C E Ferulic formula and a product containing 'Pitera'. What are the key legal and regulatory aspects I need to...

Cosmetics Commercial Sale Ingredient Naming Patent Product Registration Serum
Posted by teddy_fai
Eye Gel Formulation Review and Ingredient Suggestions for Dark Circles and Dryness

I have created an eye gel formula using leftover ingredients from my face gel. The formula includes: * `Safe-B3™ (Vitamin B3, Niacinamide) 2%` * `GlucoBright™ (Acetyl...

Cosmetics Dark Circles Reduction Eye Care Eye Gel Ingredient Suggestion Skin Dryness
Posted by cram-croo
Mixing Temperature for SiliSolve™ and Warp Cream Maker™

Regarding the emulsifiers SiliSolve™ (PEG-10 Dimethicone) and Warp Cream Maker™ (Cyclomethicone / PEG-10 Dimethicone), is it necessary to use heat during the mixing process for...

Cosmetics Emulsification Emulsifier Mixing Procedure Temperature Control
Posted by hydronium_ion3
Skincare for Oily, Dehydrated Skin with Melasma & Wrinkles

I have oily, dehydrated, rough skin with melasma and wrinkles. What ingredients and formulation approach would you recommend for a lightweight product (like a serum or gel) to...

Cosmetics Dehydrated Skin Melasma Treatment Oily Skin Serum Wrinkle Reduction
Posted by bom_nami
Nanowhite Concentration: Research vs. Recommended Usage

I saw research indicating that a 10% concentration of Nanowhite can reduce melanin by 70%. However, the website states that the maximum recommended usage is only 5%. Could you...

Cosmetics Concentration Effectiveness Safety Skin Brightening Stability
Posted by tueyyuet
Storage of Sensitive Cosmetic Ingredients Without Refrigeration

I have sensitive cosmetic ingredients like peptides and hyaluronic acid that require refrigeration. How should I store them if I don't have access to refrigeration? Is using a...

Cosmetics Effectiveness Loss Heat Sensitive Raw Material Stability Storage Conditions
Posted by korea-kon
Review and Adjustment for Silicone Base Sunscreen and Makeup Remover Formulas

I have developed two formulas and would like to know if they are suitable for use, require any adjustments in ingredients or percentages, and how to use the makeup remover....

Cosmetics Formula Review Ingredient Suitability Makeup Removal Stability Sunscreen Formulation
Posted by near_51
Alpha Arbutin Formulation Guide for Cream and Serum

Could you provide guidance on how to formulate body cream, face cream, and serum using Alpha Arbutin? Specifically, what are the recommended concentration, mixing method...

Cosmetics Cosmetic Formulation Cream Serum Skin Brightening Stability
Posted by sivacoupe
Skincare Routine Order and Mixing Green Tea Extract with Serum or Lotion

I have a toner containing Witch Hazel and Alpha Arbutin and the **Vitamin C E Ferulic serum**. 1. Which product should I apply first, the toner or the serum? Can they be used...

Cosmetics Compatibility Ingredient Interaction Lotion Serum Usage Percentage
Posted by mintie_s
Formulation Evaluation for Brightening, Clarity, and Firmness Gel with Azelaic Acid, DMAE, and Vitamin B3

I am developing a gel formulation for bright, clear, and firm skin. My initial formula idea is: * Nanowhite 5% * Azelaic Acid 10% * DMAE 10% * Aloe Vera Gel 75% I have a few...

Cosmetics Acne Treatment Formulation Adjustment Gel Skin Brightening Skin Tightening
Posted by kratey_191
Analyzing Oily Skin Toner Formulas & Application Order

I'm developing a toner for oily skin with goals for hydration, brightening, anti-aging, comfort, and no irritation. I have two potential formulas using a Witch Hazel...

Cosmetics Formulation Adjustment Ingredient Suitability Oily Skin Product Layering Toner
Posted by ceres_num
Calculating SPF/PA for Micronized Physical UV Filters in Powder

Is there a method to calculate the SPF and PA values for micronized Titanium Dioxide and Zinc Oxide when used in a powder formulation, similar to how it might be done for nano versions?

Cosmetics Physical UV Filter Powder SPF/PA Testing Sun Protection Sunscreen Formulation
Posted by ruch_joom
Adjusting Gel Formula for Very Dry, Sun-Exposed Skin: Thickness and Ingredient Levels

I have very dry skin and am exposed to strong sun daily. I am adjusting a gel formula and would like advice on the following: My modified formula includes: * Urea 5% * Sodium...

Cosmetics Formulation Adjustment Gel Skin Dryness Sun Protection Viscosity
Posted by noir_oz
Homemade Face Mask with Soy Extract, Alpha Arbutin, Yogurt, and Honey

I want to make a homemade face mask using Soy Extract (Isoflavones), Alpha Arbutin, natural yogurt, and honey. Can I mix these ingredients together? How should I mix the Soy...

Cosmetics Anti-aging DIY Formulation Face Mask Mixing Procedure Skin Brightening
Posted by pushaya
How to Thicken Hyaluron Gel with Pro Polymer

I have a Double Hyaluron Gel tester and would like to increase its viscosity using Pro Polymer. What percentage of Pro Polymer should I use? I was considering using 2%, but is...

Cosmetics Gel Texture Modification Thickener Usage Percentage Viscosity
Posted by katty_m
Adding Tranexamic Acid Powder to Vitamin C Serum (3% Concentration)

I have an existing Vitamin C E Ferulic serum. I want to add Tranexamic Acid powder to it to achieve a 3% concentration in the final product. How can I do this, and how do I...

Cosmetics Concentration Formulation Adjustment Ingredient Addition Serum Solubility
Posted by gob-1st
Simplifying a Cream Formula for DIY

I am using a cream with the following formula: `isopropyl palmitate,sorbitol,behenyl alcohol glyceral stearate...

Cosmetics Cream DIY Formulation Formulation Adjustment Ingredient Function Preservation
Posted by aon_spider
Skin Whitening Cream Formulation: Thickening Issues and Adding Sunscreen

I am trying to formulate a skin whitening cream and encountered issues with thickening. My formulation attempt used: * Light Cream Maker™ (1%) * Lactic Acid (5%) * Sea Kelp...

Cosmetics Compatibility Cream Formulation Adjustment Stability Sunscreen Formulation
Posted by pcs.labelle
Formulation for Oily Skin Serum/Gel with Hydration, Brightening, Lifting using Warp Cream Maker or Gel Base

Need to develop a serum/gel formulation for oily skin that focuses on hydration, brightening, and lifting, suitable for use with a facial massager. My previous "ultralight...

Cosmetics Anti-aging Cosmetic Formulation Oily Skin Serum Skin Brightening
Posted by ceres_num