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I am formulating a watery essence (น้ำตบ) containing Propanediol (10%), Pure-Melatonin™ (2%), WhiteCumin™ (Tetrahydrodiferuloylmethane) (1%), and Mild Preserved Eco™ (1%), with the rest being water. Do I need an emulsifier or binder for this formula, and which one should I use to achieve a watery texture?
Seeking recommendations for lightweight, fast-absorbing, and stable carrier oils that are beneficial for the skin, along with aromatic oils or fragrances, to create a cost-effective, spa-like body massage oil at home.
I would like to know if preparing a sunscreen product containing `Titanium Dioxide Transparent` and `Avobenzone` will result in a reduction of `Avobenzone`'s effectiveness.
What is the difference in usage and effect between 6% and 9% developers (Hydrogen Peroxide) when used with hair color cream, specifically regarding lifting power, grey coverage, and potential irritation?
I'm confused about how to dissolve Vitamin A Acetate. I tried dissolving it in oil, but it didn't seem to dissolve well, perhaps needing heat. When I tried dissolving it in water, it seemed to dissolve better, resulting in a cloudy liquid. Could you clarify the correct way to dissolve or mix this type of Vitamin A?
I have purchased Safe-B3 powder (Niacinamide) and Ethoxydiglycol from your store, understanding that Ethoxydiglycol can enhance delivery. I want to mix these two ingredients for personal use to reduce acne dark spots on my back. Can I mix them directly? If so, what is the recommended mixing procedure, optimal ratio/concentration for each ingredient, and how should I use the resulting mixture?
Could you please recommend suitable preservatives and sunscreen ingredients or bases that are gentle and safe for use in formulations intended for sensitive skin?
Review of a serum formulation containing Niacinamide, Ascorbyl Glucoside, Centella, Tea Tree Oil, Licorice, Willow Bark, Squalane, Ceramide, Sodium Acetylated Hyaluronate, Allantoin, and Chamomile Extract, targeting acne, redness, dark spots, pores, and hydration, for suitability for normal to sensitive skin, and potential formulation issues.
Please compare Ascorbyl Tetraisopalmitate and Ascorbyl Glucoside regarding their effectiveness, speed of results, irritation potential, and suitability for sensitive skin. Additionally, explain why Ascorbyl Tetraisopalmitate (and Ascorbyl Glucoside) cannot be combined with Niacinamide and Zinc PCA in a formulation.
I am developing a Vitamin C serum formulation and want to enhance the absorption of Vitamin C. The current base formulation is approximately: * **Thickeners (1.5% total):** Pectin, Xanthan, Iota Carrageenan * **Oil Phase (approximately 10% total):** Sunflower Seed Oil, Sacha Inchi Oil * **Water Phase:** Deionized water * **Active Ingredients:** dl-alpha tocopherol, pure Ferulic Acid, Acetyl L-Tyrosine, Perfect-C™ (Ascorbyl Tetraisopalmitate) I would like to add Phospholipid to help with absorption. I have the following questions: 1. Can Phospholipid be used in this type of formulation? What are the techniques for using Phospholipid effectively? 2. Is it necessary to add an Emulsifier to help stabilize the formula? 3. Since the formula contains Perfect-C™, is it necessary to add Disodium EDTA for stability? 4. I want the formula to be lightweight and absorb quickly. Do you have any recommendations?
Inquiry about the suitability and potential for irritation of a 30% AHA peeling gel formula containing AHA, Xanthum gum, Glycerin, and Water, asking if the proportions are appropriate and what additives might be needed to reduce irritation.
MSH White and Z-White are both described as inhibiting tyrosinase activators for whitening. Are these two ingredients interchangeable, or do they have significant differences in properties or mechanism of action?
Why does separation occur when mixing Dipropylene Glycol with Reed Diffuser Base Type 1, and how can this issue be resolved?
Is it suitable to combine Matrixyl 3000, Argireline, and Pep®-Eye peptides in an eye area product formulation? Will their functions be redundant or synergistic, and will the combination be effective for multiple eye concerns?
The user is seeking recommendations for a light, comfortable, non-pungent rose fragrance to incorporate into a facial cream formulation, requesting assistance in selecting suitable options from the available list.
When formulating a body oil and aiming to add fragrance, what type of fragrance is most suitable for use in an oil base?
Clarification on whether Xylooligosaccharide (XOS) uses Fructooligosaccharide (FOS) as its INCI name.
Can Pitera, DNA Repair, Ectoine, and SOD be combined in a cosmetic formulation, and what are the recommendations for mixing them?
How can I formulate a sleeping mask base (without active ingredients) that has a cloudy gel texture, is moisturizing, provides good skin coating without being greasy, and feels comfortable, similar to a product with the provided ingredient list?
How to calculate the exact amount of elemental iron present in a given quantity (e.g., 100 grams) of Ferrous Fumarate raw material?