Clinical Evidence Argan Oil For Scars-does It Really Work?
Clinical Evidence on Argan Oil for Scars
Clinical evidence on argan oil for scars primarily stems from animal studies and limited human trials, showing promising but not definitive results for reducing scar appearance and aiding wound healing. A 2018 Turkish study demonstrated argan oil's ability to prevent postoperative peritoneal adhesions in rats by up to 50%, attributing this to its fatty acids and tocopherols that inhibit inflammation and tissue adhesion. While human data is emerging, such as a 2018 randomized trial where plant oil blends including similar fatty acids improved non-keloid scar scores by 5-20%, experts caution that more large-scale human trials are needed before recommending it as a primary treatment.
Key Studies and Findings
One landmark study, published in April 2018 by Dr. Oguz Ugur Aydin and colleagues in Medicine Science, tested argan oil on rats post-abdominal surgery. The oil significantly reduced peritoneal adhesions-scar tissue formations-through mechanisms like plasminogen activation and matrix metalloproteinase inhibition, with adhesion scores dropping markedly compared to controls.
In a 2016 PubMed-published experiment involving 30 Wistar rats with second-degree burns, argan oil applied twice daily accelerated wound contraction by 76% on day 14, outperforming silver sulfadiazine (69%) and boosting TGF-β1 mRNA levels up to 58-fold, indicating enhanced healing. Histopathology confirmed superior tissue repair in treated groups.
- 2018 Turkish rat study: Reduced postoperative adhesions via anti-inflammatory fatty acids.
- 2016 burn wound trial: 31-76% contraction rates, better than standard treatments.
- Plant oil blend RCT (2018): 5% OSAS score reduction in scars, 20% per patient assessment.
- General reviews note vitamin E and antioxidants aid elasticity but lack scar-specific human RCTs.
Study Summary Table
| Study Date | Model | Key Outcome | Statistical Significance | Source |
|---|---|---|---|---|
| April 2018 | Rats (post-surgery) | Reduced peritoneal adhesions | P < 0.05 | |
| March 2016 | Rats (burns) | 76% wound contraction | P < 0.05 | |
| 2018 | Humans (80 volunteers) | 5-20% scar score improvement | P = 0.001 overall | |
| 2021 Review | In vivo summary | Antioxidant skin benefits | Limited clinical PK/PD |
How Argan Oil Works on Scars
Argan oil, derived from Argania spinosa kernels in Morocco, contains 80% monounsaturated fatty acids, tocopherols (vitamin E), sterols, and polyphenols that combat oxidative stress and inflammation key to scar formation. These compounds promote collagen regulation and epithelialization, as seen in burn studies where oil application sped cell turnover.
- Apply oil to clean scar twice daily for 8-12 weeks, as per trial protocols.
- Massage gently to enhance penetration of essential fatty acids.
- Combine with sunscreen to prevent hyperpigmentation, boosting efficacy by 30% in UV-exposed models.
- Monitor for 4 weeks; expect 10-20% visual improvement based on patient scales.
- Consult dermatologist if keloid-prone, as evidence excludes hypertrophic scars.
Limitations and Surprise Insights
Despite hype, clinical evidence reveals a surprise: while animal models show robust anti-scarring (e.g., 50% adhesion reduction), human trials are sparse and often use blends, not pure argan oil. A 2021 Monash University review highlighted insufficient pharmacokinetic data, urging caution despite cosmeceutical promise.
"Argan oil reduced postoperative peritoneal adhesions... long-term studies needed." - Dr. Oguz Ugur Aydin, 2018.
Surprisingly, argan's wound healing rivals pharmaceuticals in rats (76% vs. 69% contraction), yet WebMD notes only preliminary human burn data, with no large RCTs for acne or surgical scars as of 2026. This gap underscores why dermatologists rank it as adjunctive, not standalone.
Practical Application Guide
For optimal results, select 100% pure, organic argan oil cold-pressed from Morocco, rich in oleic/linoleic acids (per 2022 analyses showing 45-50% composition). Studies confirm topical use hydrates scars, improving elasticity by 25% after 4 weeks.
- Pure argan: Avoid diluted cosmetics; check for CO2 extraction.
- Dosage: 2-3 drops per scar, AM/PM.
- Duration: Minimum 8 weeks for measurable change.
- Storage: Cool, dark place to preserve tocopherols.
- Allergy test: Patch on arm; rare reactions (1-2%).
Expert Opinions and Stats
Dermatologists cite argan's 2x vitamin E vs. olive oil diminishing age spots and scars, with a 2025 MD Face review noting faster cell turnover. In a 80-volunteer 2018 trial, 51% reported less pronounced scars/striae, 93% noted supple skin.
Global market data (2026): Argan oil sales hit $500M, driven by 15% YoY scar treatment demand post-COVID surgeries. "Its antioxidants reduce inflammation key to healing," per WebMD 2024 update.
| Component | % in Argan Oil | Scar Benefit |
|---|---|---|
| Oleic Acid | 45-50% | Hydration, barrier repair |
| Linoleic Acid | 30-35% | Reduces inflammation |
| Vitamin E | 620 mg/kg | Antioxidant, fade scars |
| Polyphenols | 100-200 mg/kg | Anti-photoaging |
Historical Context
Berber women in Morocco have used argan oil for centuries on wounds, formalized in science post-2000 UNESCO recognition of argan forests. The 2016 rat burn study marked first quantifiable scar data, building to 2018 human-adjacent blends.
Future Research Directions
Ongoing trials (as of May 2026) focus on keloid scars and post-surgical humans, with EU funding €2M for RCTs. Early 2026 pilots show 25% faster acne scar resolution vs. placebo. Experts predict FDA cosmeceutical nod by 2028 if p<0.01 sustained.
This article synthesizes 10+ studies, revealing argan oil's surprise potential in preclinical scar reduction while highlighting human evidence gaps. For personalized advice, consult professionals.
Key concerns and solutions for Clinical Evidence Argan Oil For Scars Does It Really Work
Is argan oil safe for all skin types?
Yes, argan oil is non-comedogenic and safe for sensitive, acne-prone skin, with 2018 trials showing reduced sebum and inflammation without pore clogging; however, perform a patch test.
Does argan oil work on old scars?
Limited evidence suggests modest fading (10-15%) for scars under 3 years; older keloids show minimal response per 2018 OSAS data.
How does argan compare to rosehip oil for scars?
Argan excels in hydration (vitamin E double olive oil), while rosehip boosts collagen; no head-to-head trials, but argan reduced burn scars faster in rats.
Can I ingest argan oil for scar healing?
Oral intake improves skin elasticity (2014 study: +20% firmness), but topical is superior for localized scars; 1 tbsp daily max.
Is argan oil FDA-approved for scars?
No, it's GRAS for consumption but cosmetic for skin; efficacy claims unregulated, backed by peer-reviewed studies not approvals.
What dosage yields best results?
Trials used 0.5mL twice daily; 83% volunteers saw benefits at this rate over 8 weeks.