Browse Questions and Answers

I have ordered freeze-dried `Bifidobacterium Longum` for a laboratory experiment at a school. I need to know the correct procedure for handling this freeze-dried `Bifido L.`...

How can I adjust the formula for a liquid matte lipstick that turned out too liquidy?

Seeking advice on a serum formulation that separates into layers despite using different emulsifiers (PEG-40, Tween 20). The formula includes oil and water phases, and the...

For a body serum formulation aiming for a viscosity of approximately 25,000 mPa.s and using Pullulan at 0.5%, which type of Pullulan (High Viscosity or Low Viscosity) should be used?

I have a list of ingredients including Licorice, Gluco Bright, Extreme-B3, Glass Moist, Witch Hazel, Allantoin, Vit E, MOIST24, Phenoxyethanol SA, Disodium EDTA, and Purified...

My sulfate-free shampoo formulation, using a Sulfate free No-Tear Shampoo Base and Cocamidopropyl Betaine, did not thicken after adding NaCl. What could be the reason, and how...

What substances can be used to prevent microbial spoilage and oxidation, which cause discoloration, in cosmetic active ingredients, and what are their recommended usage percentages?

When dissolving Thyme Kill™ in Propylene Glycol at 70°C (1:10 ratio) resulting in a clear solution, adding this mixture (after cooling) to a room-temperature water-based spray...

Can a serum/gel formula consisting of 84% Aloe Vera Gel, 10% Argireline, 3% Pep Coll, and 3% DMAE be mixed? What are the considerations regarding compatibility, usage rates,...

How to incorporate water-dispersible Vitamin A Retinyl Acetate regarding solvent, temperature, and concentration?

What do the numbers in Dimethicone product names (e.g., /50, /100, /1000) represent, and do they indicate the viscosity or lightness/feel of the silicone, with lower numbers...

How to prevent Epidermal Growth Factor (EGF) from precipitating when added to a water-based formula containing various botanical extracts and Hyaluronic Acid? The EGF...

What ingredients are needed to convert a self-developed water-based serum formula into a liposome formula?

I want to make an edible serum using `GuarCat` to build texture and including `Vitamin B12`. What kind of preservative should I use?

Seeking a waterproof and long-lasting Tone Up formulation and information on production services.

Can an oil-soluble ingredient like Guaiazulene be mixed into pre-made serum (e.g., Hyaluronic Acid) or cream? What are the considerations for compatibility, stability, and...

What is the SPF value provided by 1% concentration of Zinc Oxide 200nm EasyDisperse™ in an oil-based cream formulation?

How to formulate a clear lip gloss using Trifluoropropyl Dimethicone/Trifluoropropyl Divinyl Dimethicone Crosspolymer for color-locking properties, specifically asking if an...

Can PVP be used in foundation or sunscreen formulations to achieve a waterproof function? Which types of PVP are suitable for this purpose?

What are the mechanisms and expected durations of fragrance fixation for 12H Fix™, Sugar Fix™, and Flora Fix™ when used in perfume or body spray, and is LipidSoft™ Lite...