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Jojoba Seed Oil

Also known as: Simmondsia chinensis, jojoba oil, jojoba wax

Evidence under review. — Not yet rated

Plant-derived wax used topically for skin and hair. Limited clinical research; mostly traditional and cosmetic use.

  • What it does

    Jojoba seed oil is a liquid wax pressed from the seeds of the Simmondsia chinensis shrub native to North America. It closely mimics the skin's natural sebum, making it a popular ingredient in...

  • Evidence quality

    Evidence base hasn't been formally rated yet. See research below.

  • Clinical dose

    No established dose

See full breakdown ↓ Methodology →

What the Science Says

Jojoba seed oil is a liquid wax pressed from the seeds of the Simmondsia chinensis shrub native to North America. It closely mimics the skin's natural sebum, making it a popular ingredient in moisturizers, hair care products, and lip balms. It is used traditionally to soothe dry skin, reduce inflammation, and condition hair, though robust clinical trials supporting these uses are largely absent from the published literature.

What It Doesn't Do

Not proven to treat acne, eczema, or psoriasis in clinical trials. No evidence it works as an oral supplement for any health condition. Won't regrow hair or reverse hair loss. 'Deep skin penetration' claims are mostly marketing — it sits on the skin surface.

Evidence-Based Benefits

Forms a protective barrier on skin that helps reduce moisture loss.

Weak Evidence

Effective at: Applied topically as needed

Used as a hair conditioner to smooth the cuticle and reduce frizz.

Weak Evidence

Effective at: Applied topically as needed

Absorption & Bioavailability

Unknown for oral use. Topically, it forms a protective film on the skin surface; systemic absorption is considered minimal.

Red Flags to Watch For

  • No clinical trials found in the provided data — health claims are largely unverified
  • Oral ingestion is not a recognized or studied use; safety data for internal consumption is lacking
  • Products marketed as 'therapeutic' for skin conditions like eczema or acne lack clinical backing
  • May cause allergic contact dermatitis in sensitive individuals despite being widely marketed as hypoallergenic

Research Sources

  • General knowledge — Limited published research available

This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25