Botanicals for the face
Face oils, plant extracts and the claims made for them, graded against the research. Start with dryness, scars or sensitivity, or browse everything below.
19 articles · 12 botanicals
Evidence Check
Tea tree
Laboratory work and small clinical trials support tea tree oil’s antibacterial and antifungal activity, and a recent meta-analysis found topical tea tree reduced acne severity; reviews and formulation studies also warn of local irritation and stability problems. Current evidence is useful but limited, and safety concerns in topical use are repeatedly raised.
Research Desk
Face oils
The idea that 'linoleic oils are better for oily, acne-prone skin' rests largely on small lab studies and a few pilot clinical observations; the literature here is promising but mostly preclinical and frequently tests oils inside blends or nano‑formulations.
Index Explainer
Jojoba
Jojoba is chemically a liquid wax made largely of wax esters, the same lipid class that contributes substantially to human sebum. That chemical kinship and jojoba’s compositional stability explain many of its practical advantages, but controlled human trials showing it ‘balances’ oil production are lacking.
Myth Busting
Castor oil
Castor-heavy oil cleansing can remove makeup and even affect drug penetration, but the notion that castor oil ‘‘draws out’’ toxins or reliably clears acne is not supported by the research cited here. Evidence for helpful effects is patchy and mostly lab or formulation-level.
Evidence Check
Castor oil
Most evidence for castor oil’s effects comes from laboratory work, formulation studies, ocular or oral/denture trials, and material science—not from controlled tests on facial skin. That makes its actions plausible but not precisely mapped to regular face use.
Evidence Check
Rosehip
Online 'comedogenic scores' are crude and dated; the best evidence on rosehip oil and breakouts comes from lab and animal studies, plus analyses of oil chemistry—not from controlled human trials of rosehip oil alone.