#preservation

Articles tagged "preservation"

Preservation of anhydrous products

Preservation of anhydrous products At Walker Formulation Academy, we regularly analyse topics where cosmetic chemists accumulate the most mistakes — and the preservation of anhydrous products is one of them. Is it necessary and how to do it correctly — a methodological analysis for the Formulation Club. Short

10 min1 Jul 2026

#preservation #oils and butters

Types of cosmetic formulas: from soap to aerosol — what is hidden behind every product on your shelf

There are probably between eight and fifteen products on your bathroom shelf right now. They all look different, feel different, and work differently — but few people stop to think that behind this variety lies a strict classification. Not a marketing one, but a chemical one. The form of the formula determines everything:

11 min18 Jun 2026

#surfactants #actives #emulsions

DIY homemade lip balm: safety, shelf life, and troubleshooting

Creating a homemade lip balm seems like a simple task: melt the wax, add oils, and pour into tubes. But this apparent simplicity hides several serious risks that are rarely mentioned in recipe articles. Oils oxidize. Essential oils, which seem harmless at

9 min26 May 2026

#safety #preservation #oils and butters

Hydrosols: Use in cosmetic formulas — a complete guide for formulators

A hydrosol is one of those ingredients that only seems simple at first glance. Behind the term "floral water" lies a complex mixture of volatile aromatic compounds, organic acids, trace amounts of essential oils, and biologically active molecules capable of truly influencing the condition of the skin.

9 min20 Apr 2026

#hydrosols #emulsions #preservation

Hydrosol application methods: application techniques and storage rules for daily skincare

Hydrosols have long moved beyond being a byproduct of essential oil steam distillation and have carved out their own place in the arsenal of conscious skincare. However, most materials about them are written from the formulator's perspective: how to incorporate them into a cream formula, what pH to consider, and how to preserve them. Meanwhile, the end consumer

8 min16 Apr 2026

#hydrosols #lab technique #emulsions

Preserving clay masks

Preserving clay masks: the science of microbiological control and the role of glycols At the “Walker Formulation Academy” school, we are convinced that a deep understanding of ingredient chemistry is the foundation of professional formulation development, and preserving clay masks is one of the most illustrative examples of how mineral

11 min30 Mar 2026

#preservation

Preservation in cosmetics: why a single preservative won't save your formulation

A detailed guide to preservation systems in cosmetics: preservative groups, pH dependence, effective combinations, challenge test, and practical recommendations from Oksana Walker.

15 min2 Mar 2026

#preservation #emulsions