#cosmetic chemistry

Articles tagged "cosmetic chemistry"

Xanthan and guar gums: comparison, synergy, and the unexpected winner

Xanthan vs. guar gum: charge, rheology, and suspending properties. Experiment: 0.8% guar + 0.2% xanthan = maximum viscosity. Gum synergy, test gel formula at pH 4, and practical recommendations.

8 min3 Mar 2026

#xanthan gum #guar gum #gelling agents

pH in cosmetics: a basic guide for formulators

Why pH is important in cosmetics: the skin's acid mantle, the working range of preservatives and actives, how to measure and safely adjust pH. Step-by-step protocol, pH table by product type.

10 min2 Mar 2026

#pH #acid mantle #pH measurement

Glucono-delta-lactone → Sodium gluconate: how to make a buffer for an emulsion

How to neutralize glucono-delta-lactone (GDL) to sodium gluconate: ratio of 1 g GDL = 0.225 g NaOH, step-by-step procedure, practical example for 10 g, how to incorporate the buffer into an emulsion.

8 min2 Mar 2026

#glucono-delta-lactone #sodium gluconate #buffer

Sunscreen products: a complete guide for formulators — why DIY SPF doesn't work

Why you shouldn't make sunscreen at home: physical filters, emulsion types, the role of the base and film-formers, the '1% ZnO = SPF 1' myth, and the architecture of professional formulations

25 min2 Mar 2026

#sunscreen #SPF #zinc oxide

How climate affects the fatty acid and essential oil composition in plants

How temperature, sun, drought, and humidity alter the profile of fatty acids and essential oils. Why linseed oil from a cold region is richer in Omega-3, and why mint contains more menthol during a drought.

7 min1 Mar 2025

#fatty acids #essential oils #climate