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Jojoba

Desert liquid wax that softens skin and tames hair

Simmondsia chinensis

A person in a desert hat presses golden oil onto their cheek under a big round sun.
Illustration

The short version

Jojoba is a desert shrub whose seeds give a golden liquid that’s mostly wax esters, not typical triglyceride oil. On skin and hair it feels light, forms a breathable film, and plays well in blends. People like it because it conditions without a greasy finish and stays stable on the shelf.

Family
Simmondsiaceae
Part used
Seed (liquid wax)
Comes from
Sonoran Desert of the south-western United States and north-western Mexico

Good for?

Used as a lightweight emollient and hair‑shaft conditioner in face and beard oils. It forms a thin occlusive layer that helps reduce water loss and softens rough hairs, which can ease the scratchy feel of new beards. Its wax‑ester makeup makes it oxidatively stable, so it’s a popular carrier or oil phase for actives and oleogels. Lab work also shows it can modify delivery of other ingredients across model membranes, which is interesting for formulators rather than a direct on‑skin claim.

Does it actually work?

Early days.

A few small studies on people. Interesting, not settled.

Evidence grade 3 out of 5.

“Most of the direct skin evidence is preclinical.”

What the studies say

Most of the direct skin evidence is preclinical. In an ex‑vivo human skin model, jojoba wax reduced pro‑inflammatory cytokines and increased pro‑collagen III and hyaluronic acid markers. A transcriptomics study on reconstructed human epidermis found gene changes linked to repair without irritation signals. A small, uncontrolled human study reported reduced intranasal itching with topical jojoba, and a mouse study showed lower inflammatory gene expression after topical application. There are also in‑vitro data: enhanced retinol permeation in a membrane model and anti‑HSV‑1 activity. We still lack well‑controlled human trials on common cosmetic outcomes like hydration, barrier support, or acne signs.

A scientist with a magnifying glass finds liquid wax inside a giant jojoba seed.
Illustration

Read this first

Generally well tolerated in cosmetic use; an epidermis model did not show irritation markers with refined or unrefined jojoba. In vitro, high concentrations reduced viability of nasal epithelial cells, while a small intranasal study reported good tolerability, so be cautious with mucosal use. As with any leave‑on oil, patch test first if you have reactive skin or a history of contact dermatitis.

The stories

4 in the Journal

Index Explainer · Beard

Beard oils: what’s actually in them and what they do

Beard oils are mostly light carrier oils (jojoba, argan, sometimes castor) plus fragrance; as topical emollients they soften coarse facial hair and can reduce skin inflammation and itch, but there’s little direct human evidence that they make beards thicker or grow faster. (Evidence for moisturising and anti-inflammatory effects comes mainly from lab, animal and formulation studies.)

  • Hair

Research Desk · Face oils

Face oils for oily skin: linoleic vs. oleic, ranked

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.

  • Skin

Index Explainer · Jojoba

Jojoba isn’t an oil, and why that matters for your skin

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.

  • Skin
  • Hair

Index Explainer · Face oils

How to use a face oil: before or after moisturizer, how many drops, when

A face oil is an occlusive finish: it doesn’t add water, it helps trap it. That makes it sensible as the last step on slightly damp skin. Lab work on rosehip and jojoba oils speaks to stability and safety; few studies test them alone as facial oils, so most practical rules come from how oils behave, not trials.

  • Skin

Reviewed

Sources

  1. Topical Application of Jojoba Oil Suppresses Exercise-Induced Inflammatory Gene Expression in Mouse Skeletal Muscle. — Matsumoto Y, Suzuki K. · Biomolecules · 2025
  2. Topical application of jojoba (Simmondsia chinensis L.) wax enhances the synthesis of pro-collagen III and hyaluronic acid and reduces inflammation in the ex-vivo human skin organ culture model. — Tietel Z, Melamed S, Ogen-Shtern N, Eretz-Kdosha N, Silberstein E, Ayzenberg T, Dag A, Cohen G. · Frontiers in pharmacology · 2024
  3. Evaluation of the Efficacy of Topical Jojoba Oil in the Management of Nasal Pruritus. — Barişkan S, Bayar Muluk N, Yeşilova M, Karasulu HY, Cingi C. · The Journal of craniofacial surgery · 2026
  4. NOTE Alterations in Gene Expression Profiles of Human Epidermal Cells Treated with Jojoba Oil. — Tsuchimoto S, Sakai H, Takeuchi C, Ichiyanagi N, Hirata Y, Fukui K, Arai M. · Journal of oleo science · 2026
  5. Development and characterization of dibenzalacetone-loaded oleogels as a potential photoprotective agents for sunscreen formulations. — Sheta NM, Taher AT, Rashwan KO, Mahmoud AM, Abuelella KE. · Scientific reports · 2026
  6. Passive Enhancement of Retinol Skin Penetration by Jojoba Oil Measured Using the Skin Parallel Artificial Membrane Permeation Assay (Skin-PAMPA): A Pilot Study. — Gruber JV, Terpak N, Massard S, Schwartz A, Bojanowski K. · Clinical, cosmetic and investigational dermatology · 2023
  7. Anti-Herpes Simplex 1 Activity of Simmondsia chinensis (Jojoba) Wax. — Tietel Z, Melamed S, Eretz-Kdosha N, Guetta A, Gvirtz R, Ogen-Shtern N, Dag A, Cohen G. · Molecules (Basel, Switzerland) · 2021
  8. A Comprehensive Review of Plant-Based Cosmetic Oils (Virgin Coconut Oil, Olive Oil, Argan Oil, and Jojoba Oil): Chemical and Biological Properties and Their Cosmeceutical Applications. — Abdalla S, Aroua MK, Gew LT. · ACS omega · 2024
  9. Domesticated Argania spinosa in Eastern Morocco: HPLC-DAD/GC-MS Chemical Profiling, Antioxidant and Antidiabetic Activities, and Network Pharmacology-Guided Molecular Docking. — Azizi SE, Daoudi NE, Roubi M, Alami Merrouni I, Hendrawan AF, Bnouham M, Berrichi A, Dalli M, Legssyer B, Gseyra N. · International journal of molecular sciences · 2026
  10. Comparative Study of the Physicochemical Properties and Nutritional Quality of Argan Oil from Endemic and Planted Argania spinosa (L.) Fruit Trees in South-West Algeria. — Ould Safi M, Di Bella G, Nava V, Albergamo A, Bencheikh A, Boudeffeur S, Boughalia M, Kechairi R, Potortì AG. · Foods (Basel, Switzerland) · 2026
  11. Argan Oil: A Natural Bioactive Lipid Modulating Oxidative Stress and Inflammation. — Rabbaa S, Bouchab H, Laaziouez Y, Limami Y, Nasser B, Andreoletti P, Cherkaoui-Malki M, El Kebbaj R. · Antioxidants (Basel, Switzerland) · 2025
  12. Exploring the Impact of Extraction Methods on the Nutritional and Sensory Profiles of Argan Oil from Mostaganem Kernels. — Aridj T, Boukezzoula N, Tefiani C, Benabdelmoumene D, Chaalel A, Berrahal N, Tahlaiti A, Bentounes A, Różański H, Szumny A. · Foods (Basel, Switzerland) · 2026
  13. Effects of physical refining process on quality and stability of argan oil (Argania Spinosa (L.) Skeels). — Asbbane A, Bousaid Z, Guillaume D, El Harkaoui S, Matthäus B, Charrouf Z, Goh KW, Srasom N, Bouayahya A, Gharby S. · Scientific reports · 2024
  14. Green enrichment of argan oil (Argania spinosa L.) with thyme (Thymus vulgaris L.) and oregano (Origanum vulgare L.) leaves: Evaluating quality and stability improvements. — Oubannin S, Asbbane A, Goh KW, Singh J, Zafar I, Bouyahya A, Gharby S. · Food chemistry: X · 2024
  15. Ultrasound-assisted enrichment of argan oil (Argania spinosa L.) with thyme (Thymus vulgaris L), oregano (Origanum vulgare L.) and saffron (Crocus sativus L.) powders: Impact on bioactive compounds and oxidative stability. — Oubannin S, Asbbane A, Hallouch O, Nouj N, Goh KW, Bouyahya A, Gharby S. · Ultrasonics sonochemistry · 2025
  16. A Translational Cell-Culture Study of Jojoba Oil: Potential Uses and Safety Considerations for Nasal Applications. — Sünnetçi G, Bayar Muluk N, Acar TY, Bulbul MV, Keskin İ, Alaskarov E, Cingi C. · The Journal of craniofacial surgery · 2026