Phytosteryl Macadamiate is an ester of plant-derived phytosterols and macadamia nut fatty acids used as an emollient and occlusive in skincare. It helps reinforce the skin's lipid barrier, improve spreadability, and reduce transepidermal water loss.
| Reported effect | How often | Notes |
|---|---|---|
Contact irritation or mild redness | Rare | Generally well tolerated; occasional irritation reported in sensitive skin. |
Allergic contact dermatitis | Very rare | Possible in individuals sensitized to macadamia nut-derived components. |
Comedogenicity / clogged pores | Rare | Low comedogenic potential, but heavy lipid esters may contribute to congestion in acne-prone skin. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.