Browse Questions and Answers

I want to make a Vitamin C (L-Ascorbic Acid) serum and have some questions about formulation, solubility, and stability. * A website suggests heating Vitamin C to 50-70°C for...

I am 25 years old and would like feedback on several DIY skincare formulas I've designed for my face and body. My goal is to create simple recipes that do not require pH...

I am trying to formulate a physical sunscreen using nano Titanium Dioxide and Zinc Oxide. I understand that ingredients like silicones are often used to help these filters...

Is a ready-made cream base available for purchase? If not, how can I create a cream texture using ingredients from the shop?

Is there a method to calculate the exact percentage of Lactic Acid needed to adjust the pH of a formulation from 5 down to 3.5-4, or is incremental measurement the only practical way?

I am looking for advice on formulating a product to address multiple skin concerns: clogged pores, redness, large pores, and achieving skin brightening. Initially, I considered...

Could you recommend a formulation to address skin hydration, prevent water loss, increase firmness and elasticity, promote radiance, and provide anti-aging benefits,...

Is it normal for the Metabiotics Resveratrol product to have a sour/musty smell and a slightly cloudy appearance?

I'm currently using a Vitamin B3 (Niacinamide) serum at 2%. If I increase the concentration to 4%, will the effectiveness improve? Are there any side effects to be aware of?

I am currently using a tester of Double Hyaluronic base serum with the following added ingredients: * Alpha-Arbutin 2% * Allantoin 0.2-0.5% * Green Tea Extract EGCG 3% *...

DMAE is acidic. Can it be combined with Vitamin C and Glutathione in a formulation? Is pH adjustment necessary?

I have a product containing fermented ingredients and noticed sediment at the bottom. Is this sediment part of the active substance?

I have issues with uneven skin tone and large pores. I have purchased cosmetic ingredients to address these concerns but am unsure how to mix them correctly. Could you provide...

I have a cosmetic formulation containing Sea Kelp at 10% and Hydrolyzed Rice Protein. * Do these ingredients hinder the absorption of other ingredients? * Do they cause texture...

I am currently using Retin-A 0.025%. How should I adjust my skincare routine, especially regarding potential dryness or peeling? * Are the following facial formulas suitable...

As a beginner attempting to create a serum formula containing L-Ascorbic Acid, Alpha Arbutin, Glutathione, ALA, AHA, Ferulic Acid, Ethoxydiglycol, Propylene Glycol, Hyaluronic...

I need a formula for a cream containing Gac fruit extract, Vitamin B3 (Safe-B3™), Pro Vitamin B5 (D-Panthenol Care), Natural Moisturizing Amino Acids, and Azelaic Acid (Liquid...

I want to formulate a gel for skin tightening, whitening, and smoothing using the following ingredients: * Sea Kelp Extract * DMAE * Alpha Arbutin * Hyaluronic Gel base Can you...

I have **Squalane**, **Vitamin E**, and **Jojoba Oil** and want to make a facial lotion. My skin type is combination dehydrated, and I currently don't have much acne, but I...

I have a few questions regarding ingredient usage in my formulations: 1. I am using two products, both containing `azelaic acid 10%`. I apply the first product, followed by the...