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Combining Ingredients for Oily Skin Control
Regarding controlling oily skin, should multiple ingredients be used to target more than one mechanism of inhibiting oil production? Could you recommend which oil-controlling...
Serum/Gel Formulation for Oily, Sensitive, Acne-Prone Skin
I have oily skin (sometimes combination, dry + oily T-zone), sensitive skin, easily irritated, with clogged pores, inflammation, and rashes. My objective is to reduce clogged...
Calculation of Vitamin B3 Amount in Cream/Lotion
Based on the usage instructions: * Recommended concentration is 5%. * Maximum concentration is 10% without causing allergy or skin irritation. Given an example of adding...
Ingredients in Plug-in Car Air Freshener
Regarding the formulation of **plug-in car air fresheners** (such as Glade or Ambi Pur Car), besides the **Fragrance oil**, are there any other ingredients?
Hyaluronic Acid (Japan) for Serum Gel Formulation
I would like to inquire if `hyaluronic ชนิด Japan` forms a gel when used to make a serum?
Gelling Agent for Alcohol Hand Gel
I would like to inquire about which gelling agent should be used to make `Alcohol` gel.
Adjusting Lotion Formula for Lightweight, Sensitive Skin
I want to develop a lightweight, easily absorbed lotion formula for sensitive skin. Based on the following formula, what additions or adjustments are needed? **Formula:** *...
Formulation Modification for Foundation/BB Cream (Adding PowderCream, Color, SPF)
Based on the following formula for Foundation/BB, can the proposed additions be made? Formula: * Silicone Gel Ultra Clear 70% * Titanium Dioxide Nano EasyDisperse™ 3% * Silk...
Solubility of Pure-Melatonin™ in Oil
Regarding the product **Pure-Melatonin™**, the website states it is soluble in some oils. I have tested it with aloe vera oil and it did not dissolve. I also do not want to...
Troubleshooting Cream Pilling Issue
I tried formulating a cream, but when applied, it pills. I'm unsure of the cause and how to fix it. The ingredients are as follows: * Aqupec HV-805EP 0.87% * Iso Propyl...
Reed Diffuser Bases and Scent Diffusion
Based on my research, I know you sell Reed Diffuser Base. However, I personally want to use a base that comes from natural sources. I tried mixing Fractionated Coconut Oil with...
Formulation Review for Anti-Aging Whitening Gel Sleeping Mask
I am requesting a review and recommendations for a trial batch formulation of a gel product intended for overnight use as a sleeping mask. The user is comfortable with...
Understanding Cosmetic Ingredients and Their Functions
Could you please explain the ingredients in the following list and their functions? * lepidium sativum sprout extract * Caprylic/capric triglyceride * Glycerin * phytol *...
Serum Formulation for Melasma, Wrinkles, Scars, and Hydration (Alcohol/Oil/Silicone/Paraben-Free)
Could you please recommend ingredients for formulating a serum with the following objectives? 1. Reduce melasma and freckles. 2. Reduce roughness, make skin soft, smooth, and...
Difference between Overhead Stirrer and Homogenizer for Shampoo and Cream
I want to buy a mixing machine for shampoo. I see both overhead stirrers and Homogenizers. I don't understand how they are different and how to choose which one to buy. Are...
Body Salt Scrub: Preventing Oil Separation and Yellowing
Hello, I have tried making a body salt scrub with the following components: * oil 16% * ewax 8% * stearic acid 8% * liquid soap 34% * water 31% * salt 200% * Fragrance * BHT...
Cleansing Oil Stability Issue
I have tried making a cleansing oil with the following ingredients: * Olive Oil * Grapeseed Oil * castor oil * Laureth-4 5% After about 2 months, the oil separated and became...
Solubility of Kojic Acid Dipalmitate in Water-Based Products
I would like to know about the solubility of `Kojic Acid Dipalmitate` for use with water-based products.
Safety Concerns of High Concentration Ethoxydiglycol
Regarding the ingredient Ethoxydiglycol, I understand that the FDA (อย.) limits its use to no more than 5-10%. I am wondering what the dangers or negative effects would be on...
Ingredients for Exfoliating Soap
I want to make an exfoliating soap. Could you please tell me: * Which ingredients should I add to the formula? * What is the recommended usage percentage for these ingredients?