HPMC 150K is a cellulose-derived, nonionic polymer used to thicken and stabilise water-based formulations.
It creates smooth gel textures with a clean slip and is a strong option for serums, toners, and gel-based skincare where you want elegant viscosity without a gummy feel.
This polymer can also support suspension of lightweight particles and helps improve flow and application feel.
The 150K grade is a mid-to-high viscosity option, giving noticeable thickening at relatively low use levels.
FEATURES
- Clean gel texture – builds smooth viscosity with good slip.
- Nonionic compatibility – works well across many active systems.
- Suspension support – helps reduce settling in water-based products.
- Flexible processing – hydrates well with the right dispersion method.
BEST FOR
- Gel serums
- Toners
- Hydrating gels
- Suspension gels
- Light moisturisers
- After-sun gels
FORMULATION GUIDELINES
| INCI | Hydroxypropyl Methylcellulose |
|---|---|
| Type | Nonionic thickener/rheology modifier |
| Grade | 150K (mid-to-high viscosity) |
| Solubility | Water dispersible (hydrates in water) |
| Use Rate | 0.2–2.0% typical. 0.3–0.8% is common for serums and toners. 0.6–1.2% is common for thicker gels. |
| Best Phase | Water phase |
| pH Compatibility | Works across common skincare pH ranges. We recommend finished product pH 4.0–9.0 for stable viscosity. |
| Temperature Tolerance | Stable under normal processing. Hydration can be done at room temperature, or with controlled warming to speed up. |
| Pro Tip | For clump-free hydration, pre-wet hydroxypropyl methylcellulose with glycerin, then sprinkle into water with good mixing. Allow 30–60 minutes for full hydration before you judge viscosity. Avoid aggressive high shear after the gel forms, because over-shearing can reduce viscosity. |
| Appearance | White to off-white powder |
| Stability Notes | Stable in many systems. Viscosity can shift with high electrolyte loads and certain solvent systems, so test your full formula early. |
| Storage | Keep sealed, cool and dry. Protect from humidity. |
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