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Custom Gel/Serum Formulation for Oily, Acne-Prone Skin & Product Layering

I have oily, dehydrated, acne-prone skin with various types of acne and post-inflammatory hyperpigmentation (dark spots) and erythema (red marks). I want to create a custom...

Cosmetics Acne Treatment Gel Oily Skin Product Layering Serum
Posted by salinthip.susi
Understanding Polyglutamic Acid (PGA) and Molecular Weight Differences

What is the difference between high and low molecular weight Polyglutamic Acid (PGA) and how do they function differently on the skin? Specifically, how do large molecules...

Cosmetics Hydration Serum Skin Absorption Skin Barrier Repair Texture
Posted by ntharnath
Using BHA (Salicylic Acid) in Bar Soap

I am trying to use Salicylic Acid (BHA) in a bar soap formulation. The expert mentioned that BHA relies on acidic pH to work, but bar soap is alkaline, which makes BHA...

Cosmetics Bar Soap Effectiveness Liquid Soap Solubility pH Suitability
Posted by arunsak2000
Compatibility of Yeast Ingredients and Willow Bark Extract in Formulations

I would like to inquire about the compatibility of certain ingredients: * Can Yeast Resurface, Yeast Radiance™, and Galactomyces Ferment Filtrate (Pitera) be used together in a...

Cosmetics Acidic Formulation Ingredient Function Ingredient Interaction Serum Yeast Derived Ingredients
Posted by acabane_108
Hair Removal Foam: Foaming Agent, Preservative, and High pH

I am formulating a hair removal foam for use with a foam pump bottle. The formula has a high pH of 12-12.5. 1. What foaming agent should I use? 2. Is a preservative necessary...

Cosmetics Foam Pump Formulation Foaming Hair Removal High pH Preservation
Posted by ronnakrit_nueng
Skin Irritation from Whitening Serum Ingredients

I previously used Activated Resorcinol 1% dissolved in oil without experiencing any allergic reactions. Recently, I tried using Activated Resorcinol S 4% and developed an...

Cosmetics Ingredient Comparison Ingredient Suitability Serum Skin Brightening Skin Irritation
Posted by batblast41
Benefits and Properties of Ectoin

What are the benefits of using Ectoin?

Cosmetics Active Ingredient Anti-Pollution Anti-aging Hydration Skin Irritation
Posted by nanosecond19
Sunscreen Formulation Feasibility and Suitability for Oily, Acne-Prone, Sensitive Skin

My skin is combination to oily, prone to clogged pores, large pores, and sensitive. I want to make a sunscreen cream using the following ingredients: * Avobenzone 5% *...

Cosmetics Acne-prone Skin Cream Oily Skin Sensitive Skin Sunscreen Formulation
Posted by wannida260639
Using Polysorbate 20 to Mix Natural Extract with Olive Oil and Moringa Oil

I want to mix a natural extract with Olive Oil and Moringa Oil using Polysorbate 20 (Tween 20). Is this suitable, and how would I do it? I'm unsure if the natural extract is...

Cosmetics Emulsifier Ingredient Interaction Mixing Procedure Solubility Turbidity
Posted by srto2557
Perfume Formulation: Diluting Fragrance Oil with Alcohol and Fixative

I would like to know if the fragrance oils available for purchase under the "Brand" section can be used directly, or if they need to be mixed with "Last Fix" and "Ethyl...

Cosmetics Fragrance Fragrance Formulation Perfume Solvents Usage Percentage
Posted by thanapoompthnp
Comparison of Wakame Extract and DMAE for Skin Firming and Under-Eye Use

I am developing a **cream** formulation intended for use on both the **face** and the **under-eye area**. I am considering using either **Wakame extract** or **DMAE** for their...

Cosmetics Cream Skin Irritation Skin Tightening Under-eye Product Wrinkle Reduction
Posted by himyangel
Ichthammol (Ammonium Bituminosulfonate) Stock Availability

When will Ichthammol (Ammonium Bituminosulfonate) be back in stock?

Cosmetics Ingredient Availability Ordering Product Availability
Posted by taeioyou
BB Sunscreen Formula with SPF Protect Ultra™ II (Requires Blending)

I am looking for a BB sunscreen formula that controls oil and prevents dullness. Can you provide a formula that does *not* require blending?

Cosmetics BB/CC Cream Mixing Procedure Oil Control Sun Protection Sunscreen Formulation
Posted by ezarian11
Shampoo and Leave-on Hair Treatment Formula Review (pH, Preservation, Clarity)

I have two hair product formulations I would like to review: 1. **Shampoo Formula:** * Aims: Soft, moisturized, gentle, sulfate/silicone/paraben-free, pH 7. * Includes 10% Oat...

Cosmetics Formula Review Leave-in Application Preservation Shampoo pH Adjustment
Posted by chuachom
Making Hair Perfume with Oil and Water: Solubilizer and Preservative

I want to make a hair perfume using fragrance oil, nourishing oil, Tween 20, and distilled water. Can I mix these together? Or do I need a dispersing agent or other...

Cosmetics Fragrance Formulation Preservation Solubility Spray Water-based Formulation
Posted by wichakhun
Formulation Guide for Dense Facial Foam (Similar to Nivea)

I would like to know the function of the following ingredients found in Nivea facial foam that contribute to its dense foam and thick texture. Could you also provide guidance...

Cosmetics Cosmetic Formulation Facial Cleanser Foaming Ingredient Function Texture
Posted by jiraphorn.zom
Thickening and Improving Feel of Sulfate Free Shampoo Base

Regarding the `Sulfate Free Shampoo` base: 1. How can I thicken the base? 2. How can I improve the skin feel (reduce stickiness) after rinsing? 3. Can fragrance be added,...

Cosmetics Fragrance Non-sticky Texture Shampoo Base Sulfate-Free Formulation Viscosity
Posted by penguin_mom
Using Aloe Vera Gel Lite as a Base in Whitening Serum to Prevent Pilling

I am developing a whitening serum and experiencing pilling when using AnyGel as the gelling agent. I would like to use **Aloe Vera Gel Lite** as the base instead of water. My...

Cosmetics Gel Base Pilling Serum Skin Brightening Stability
Posted by my-thai
Aloe Vera Extract vs. Aloe Vera Oil: Choosing the Right Form for Your Skin

What is the difference between Aloe Vera Extract and Aloe Vera Oil, and which one is suitable for different skin types (normal/oily vs. dry)? Can they be used together?

Cosmetics Oil Oily Skin Skin Absorption Skin Dryness Solubility
Posted by jn_andy
Mixing Alpha Arbutin, Lemon Peel, MSH White in Lotion

Can the following ingredients be mixed together in a lotion base at the specified percentages? * Alpha Arbutin 2% * Lemon Peel Bioferment 2% * MSH White Absorb 5%

Cosmetics Compatibility Cosmetic Formulation Lotion Skin Brightening Usage Percentage
Posted by aowa85