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Cream Formulation for Sensitive, Acne-Prone Skin

For formulating a cream suitable for sensitive and acne-prone skin: 1. Which ingredients should be used? 2. Which ingredients should be avoided?

Cosmetics Acne Treatment Cream Ingredient Selection Sensitive Skin Skin Irritation
Posted by tida_mee
Adding Vitamin E to Rosehip Oil for Preservation and Skin Benefits

What is the recommended percentage of Vitamin E (Tocopheryl Acetate) to add to Rosehip oil for preventing oxidation and for skin nourishment?

Cosmetics Ingredient Addition Oil Oxidation Skin Nourishing Usage Percentage
Posted by kixz_zy
Hair Curl Cream Formula Improvement

I have a formula for a hair curl cream with the following key ingredients: * Aqua * Cetyl Alcohol * Polyvinyl-pyrrolidone * Steareth-20 * Fragrance * Phenoxyethanol *...

Cosmetics Conditioning Cream Formulation Adjustment Hair Styling Product Preservation
Posted by ae_psu
Vitamin A Forms and Alpha Arbutin for Anti-Aging & Whitening on Combination Skin

I want to make an anti-aging and whitening product for combination skin, specifically avoiding oil-based formulas. I'm currently considering using Retinyl Palmitate. 1. What...

Cosmetics Anti-aging Effectiveness Ingredient Suitability Serum Skin Brightening
Posted by kat_runya
Ceramide Complex Dispersion and Formulation

Why doesn't Ceramide Complex dissolve completely in formulations, and is this normal? How can I properly incorporate it into a formula to prevent settling? The staff suggested...

Cosmetics Dispersion Stability Suspension Texture Modification Thickener
Posted by pinkyblossom
Substituting Perfect C in Vitamin C E Ferulic Kit, Formula Separation, and Preservative Need

I want to make a Vitamin C serum using `Perfect C™ (Ascorbyl Tetraisopalmitate)`. Can I substitute `Perfect C` into the `Vitamin C E Ferulic kit` formula which is designed for...

Cosmetics Phase Separation Preservation Serum Solubility Stability
Posted by kat_runya
Sour Smell in Formulation with Lactic Acid

I have a formulation that has a strong sour smell. What is causing this smell, and how can I reduce or eliminate it? The formulation likely contains Lactic Acid.

Cosmetics Cosmetic Formulation Formulation Adjustment Fragrance Ingredient Alternatives Odor
Posted by skeggiold.film
Preservative Options and Boosters in Emulsion Formulas

In an oil + water formula using an emulsifier (emulsion type), I would like advice on using preservative systems from these two options: 1. `pentylene glycol` 3% +...

Cosmetics Effectiveness Emulsion Ingredient Interaction Preservation Safety
Posted by chatkathac
Whitening Body Lotion: Rapid Results, High Concentration, and Regulatory Compliance

I want to create a body lotion that can make skin significantly whiter within just 1-2 weeks. I previously tried a lotion that made my skin white like veins were visible in...

Cosmetics Effectiveness High Concentration Lotion Regulatory Compliance Skin Brightening
Posted by e0936673536
Stability of Vitamin C (Ethyl Ascorbic Acid) and Collagen in Cream Formulation

I am formulating a cream containing Ethyl Ascorbic Acid and Collagen. I have two questions regarding the formulation: 1. If I do not include Disodium EDTA, will the cream...

Cosmetics Absorption Color Changing Cream Solubility Stability
Posted by so_ega_lv
Usage Percentage and Stability of Easy Cream Maker for Oil and Silicone Emulsification

What is the recommended maximum percentage of oil and silicone that can be emulsified using Easy Cream Maker, and how does this percentage affect the stability of the final...

Cosmetics Cream Emulsification Silicone Stability Usage Percentage
Posted by jn_andy
Hair Growth Spray Formula and Vitamin B5 Addition

Regarding the suggested hair growth spray formula, I would like to know: 1. Is this formula suitable for applying to the scalp? 2. Can it also be applied to the ends of the...

Cosmetics Hair Growth Stimulation Hair Loss Reduction Ingredient Addition Scalp Care Spray
Posted by kat_runya
Adjusting Cream Formula: Impact of Multiple Actives on Texture & Absorption

I am developing a cream formula using a cream base and plan to add multiple active ingredients. I would like to know about the potential effects and considerations when...

Cosmetics Cream Ingredient Addition Ingredient Mixture Skin Absorption Texture
Posted by abalahay
Sodium Lactate 60% Usage Percentage Calculation

Regarding Sodium Lactate (60% liquid), the usage rate is stated as 2-5%. Does this mean the 60% liquid solution can be used directly at 2-5% in the formulation, or is this...

Cosmetics Amount Calculation Concentration Humectant Usage Percentage
Posted by korea-kon
Formulation Questions: Adding Ingredients to Cream, Soap, and BHA Toner

I have some questions about formulating different products. I am currently using **Ceramide** and **Repair Activator™** in my formulas and would like some advice. 1. Regarding...

Cosmetics BHA Toner Cream Skin Brightening Skin Irritation Soap
Posted by abalahay
DIY AHA/BHA Peeling Product Formulation

How to formulate a DIY wash-off AHA/BHA peeling product at safer concentrations (e.g., AHA 5%, BHA 5%)? Specifically, I need to know: * Can AHA and BHA be mixed together in the...

Cosmetics DIY Formulation Gel Preservation Thickener pH Adjustment
Posted by dharmaamm
Benefits of Silicones in BB Cream and LipidSoft™ Alternatives

What are the specific benefits of using silicones like `Silicone Gel (Ultra Clear, Super Silky)` and `Cyclomethicone (Cyclopentasiloxane)` in a BB cream formulation? Can...

Cosmetics BB/CC Cream Film Former Ingredient Alternatives Long-lasting Texture
Posted by n_o_izzz
Waterproof Eyeliner and Mascara Formulation Guidance

I am looking for a formula for waterproof eyeliner and mascara that also helps thicken lashes. If a complete formula is not available, can you provide guidance on the key...

Cosmetics Cosmetic Formulation Eyeliner Lash Thickening Mascara Waterproof
Posted by aungrisa
Modifying Cleansing Oil with Water and Alternative Formulas

I am trying to modify a Cleansing Oil formula using Oilsify 15 and possibly Sugar Gel. What happens if I add water to this formula? Will it affect the texture and cleansing...

Cosmetics Cleaning Water Cleansing Oil Effectiveness Loss Formulation Adjustment Texture Modification
Posted by chatkathac
Using Citromask for Odor Masking and its Effect on Fragrance

How can **Citromask** be used to mask chemical odors in a cosmetic formulation? What is the recommended usage percentage and addition method? How does using **Citromask**...

Cosmetics Fragrance Mixing Procedure Odor Neutralizer Odor Reduction Usage Percentage
Posted by jn_andy