RAWESS · Knowledge
Selecting Cosmetic Emulsifiers and Thickeners
An emulsifier system and a thickener solve different formulation problems. Compare the proposed grade, test conditions and manufacturing process before using viscosity or ingredient names to choose a replacement.
Define emulsion and texture targets
Describe the oil phase, desired product format, sensory profile and available mixing and heating process. Include pH, electrolytes and packaging. An emulsifier suitable for one formula may need a different co-emulsifier or stabilizer package in another.
Compare grades under equivalent conditions
Distinguish self-emulsifying glyceryl stearate grades from non-SE materials. For olivate blends, compare the exact composition and manufacturer rather than assuming branded equivalence. For xanthan gum, require viscosity and clarity test conditions before comparing reported values.
Validate the complete formulation
Record heating and cooling, shear, hydration time and order of addition. Check viscosity evolution, phase separation, sensory properties and packaging compatibility under the relevant stability protocol. A thickener cannot be assumed to replace an emulsifier or a preservative system.
Compare the supplied options
| Option | Main purchasing check |
|---|---|
| Emulsifier system | Evaluate the complete oil-water interface and process |
| Rheology modifier | Evaluate hydration and measured flow behavior |
A higher viscosity reading alone does not prove emulsion stability or interchangeability.
Can I substitute materials with a similar INCI list directly?
Do not assume direct substitution. Composition ratios, physical form, manufacturer specifications and processing guidance can differ. Repeat the relevant formulation and stability trials.
Ingredient specifications and downloadable guides
- Glyceryl Stearate SE — Download English product PDF
- Olivem 1000 Type — Download English product PDF
- Xanthan Gum Clear — Download English product PDF
- Olive Squalane — Download English product PDF
Shortlist the grade that fits your brief, then agree the analytical and formulation acceptance criteria with your quality team. A product guide is reference information; request the actual lot COA before approval.
Continue with a practical check
Cosmetic Emulsion and Viscosity Troubleshooting — When an emulsion separates or viscosity drifts, isolate the emulsifier, hydration and process variables before increasing the thickener.
Continue with a practical check
COA vs SDS vs TDS for Cosmetic Raw Materials — Use the right document for the decision: batch acceptance, handling hazards and formulation guidance require different evidence.
Continue with a practical check
Cosmetic Ingredient Solubility and Dispersion Testing — Screen dissolution, dispersion and hydration separately so a promising-looking sample does not hide sediment, incomplete hydration or an unsuitable vehicle.
Continue with a practical check
Cosmetic Ingredient Storage and Stability Checks — Separate raw-material storage instructions from finished-formula shelf-life evidence, and control exposure during both sampling and production.
Continue with a practical check
Cosmetic Raw Material Sample Evaluation and Quotation — Compare samples and quotations on the same grade, composition and acceptance criteria before deciding which offer has the lower usable cost.