Browse Questions and Answers

How can I prevent or slow down fermentation in a serum containing fruit extract, which occurred due to high temperatures during delayed shipping? I am currently using Mild...

When formulating a water-based perfume spray, can both Glycerin (99.5%) and Propanediol (1,3-Propanediol) be used as solvents? If so, what are the key differences between them,...

How can I obtain the GC/MS results for the Essential Oils available for sale on the website?

I stored a liquid product called "Perfect A liquid" in the freezer according to instructions, but after thawing, its appearance has changed (crystallization/separation). Is the...

Is there a ready-made perfume base pre-mixed with a fixative available for purchase that provides over 12 hours of longevity? If not, please recommend the necessary ingredients...

When using Nano Silver in personal care or pet care products, black precipitate forms. Is this due to reactions with other ingredients? Can chelating agents like EDTA help, or...

What are alternative broad-spectrum preservatives for a Bakuchiol cream formulation containing water and oil, specifically as a replacement for Geogard 221?

I am trying to formulate a product by mixing oil-soluble ingredients (Jojoba Oil, Vitamin E, Ascorbyl Tetraisopalmitate, Bakuchiol) with Pure-Melatonin dissolved in...

Can Viscolam AT 100P replace Pro Polymer in a self-tanning gel formula, or what other alternatives are recommended for achieving the desired texture and viscosity?

How can I adjust a self-tanning gel formula containing Water (87%), Ethoxydiglycol/DMI (3%), DHA (3.5%), Reservoir-Tech (3%), EasyTan™ (1.5%), Pro Polymer (1%), and Mild...

What is the correct name for the ingredient "Reservoir-Tech" to use for FDA registration purposes when developing a product for sale?

I have a sunscreen formula with the following composition: 1. OMC 8% 2. Octocrylene 4% 3. Octisalate 5% 4. Hectorite 10% 5. Isododecane qs The problem is that **it doesn't...

Why does the tan color from a self-tanning gel wash off after showering, and will daily application make the color permanent?

Inquiry about available ready-to-use Vitamin C products.

Please analyze the following list of ingredients and explain their likely functions in a sunscreen formulation: 1. Water 2. Homosalate 3. Ethylhexyl Salicylate 4. Alcohol...

I would like to request a formula for a Vitamin C serum suitable for sensitive skin, focusing on brightening and reducing wrinkles.

How can I find the HLB value for cosmetic ingredients and bases, specifically asking for the HLB of SiliSolve Plus and the emulsion type (O/W or W/O) and HLB for Silky Base...

What are the functions of the key ingredients like Salicylic Acid, Clays (Kaolin, Bentonite), Curcuma Longa Root Extract, and Menthol in this product formulation?

I am trying to formulate a cream using Light Lotion Maker (ID 5938) with the provided formula and method, but the mixture remains liquid and does not form a cream texture. What...

Seeking advice on enhancing penetration in a hair serum formulation already containing 2% Laurocapram (Water Soluble). Specifically, which of Ethoxydiglycol, Phospholipid, or...