Everything You Need to Know About Tamanu Oil

What is tamanu oil?

If you’ve browsed a natural foods shop or a health boutique, there’s a good chance you’ve encountered tamanu oil.

Tamanu oil is pressed from the seeds of a tropical evergreen commonly called the tamanu nut tree. Various parts of this tree — including the oil — have been used medicinally for centuries by some Asian, African, and Pacific Island communities.

Traditionally, tamanu oil has been valued for its skin-healing properties. Today, many personal accounts describe its topical uses. A few studies indicate tamanu oil may inhibit tumor growth in cancer models, treat vaginitis, and ease certain symptoms in people with HIV, though it remains largely absent from mainstream Western medical practice.

Tamanu oil benefits

Tamanu oil is reputed to offer several health and cosmetic benefits, ranging from wound repair to improved hair health. While not every claim has been thoroughly investigated, a number have been the subject of scientific study.

Tamanu oil for acne

A 2015 investigation of tamanu oil samples from five South Pacific locations found notable antibacterial and wound-repair activity against bacterial strains implicated in acne, including Propionibacterium acnes (P. acnes) and P. granulosum.

There is also evidence the oil has anti-inflammatory effects. Coupled with its antimicrobial activity against P. acnes and P. granulosum, tamanu oil may be useful in treating inflamed acne.

Tamanu oil for acne scars

Tamanu oil has been used successfully for scar treatment in clinical settings. Multiple biological studies report tamanu oil supports wound healing and skin regeneration. It has been shown to stimulate cell proliferation and boost production of key skin components — such as collagen and glycosaminoglycan (GAG) — which are important in scar healing.

The oil is also rich in antioxidants, compounds that have been found helpful in treating both scarring and acne.

Tamanu oil for athlete’s foot

Tamanu oil is thought to be effective against athlete’s foot, a contagious fungal infection of the feet. Although direct studies on athlete’s foot are limited, there’s substantial evidence supporting the oil’s antifungal properties.

Tamanu oil benefits for wrinkles

Tamanu oil is included in many skincare formulas, including anti-aging products. It contains abundant fatty acids that help maintain skin moisture and antioxidants that combat free-radical damage.

Its capacity to enhance collagen and GAG production also contributes to anti-aging and skin-repair effects.

Additionally, tamanu oil may protect against some sun-related aging. A 2009 in vitro study showed the oil could absorb UV light and prevent about 85 percent of UV-induced DNA damage in that model.

Tamanu oil for dark spots

There’s currently no solid evidence that tamanu oil lightens dark spots, although some people use it for that aim.

Tamanu oil for dry skin

Dry skin is commonly managed with oils. Because tamanu oil has a high lipid content, it likely acts as an effective moisturizer.

Tamanu oil for eczema

Research indicates tamanu oil has anti-inflammatory actions. While some individuals use it to help with inflammatory conditions like eczema, more studies are required to clarify its effectiveness.

Tamanu oil for fading stretch marks

Like treatments for acne scars, attempts to fade stretch marks usually rely on moisturizing, antioxidant, and anti-inflammatory approaches. Tamanu oil possesses these qualities, but evidence is insufficient to confirm any real benefit for stretch marks.

Tamanu oil for hair

There is limited scientific investigation into how tamanu oil affects hair. It likely serves as a moisturizing agent, though this hasn’t been firmly established. Anecdotal reports claim it can slow hair loss, but that hasn’t been validated by research.

Tamanu oil for ingrown hairs

Ingrown hairs often involve inflammation and irritation. Given tamanu oil’s anti-inflammatory and healing properties, it might help alleviate ingrown hairs. However, no specific studies have evaluated tamanu oil for this condition.

Tamanu oil for insect stings

Some apply tamanu oil to insect stings. Although the oil has anti-inflammatory effects, there’s no definitive research into its effectiveness for bug bites.

Tamanu oil for scars

Multiple studies indicate tamanu oil contains properties that can speed wound healing, reduce inflammation, and stimulate collagen formation.

In two clinical reports, tamanu oil emulsions were applied to patients with resistant or postsurgical wounds; the oil aided healing and resulted in noticeably less scarring.

Tamanu oil for sunburns and other burns

Some people turn to tamanu oil for sunburns and other burns. While research supports its healing and antibacterial activities, its specific effects on burns are not well understood.

Tamanu oil uses

Tamanu oil can be used directly on the skin for therapeutic or cosmetic reasons. It may also be blended with creams, essential oils, and other ingredients to make face and hair masks, moisturizers, shampoos, and conditioners.

Side effects and precautions of tamanu oil

Product labels for tamanu oil advise against ingesting the oil and warn to avoid eye contact. Manufacturers also caution against applying the oil to open wounds; seek medical care for large or deep wounds.

Remember that tamanu oil is marketed as a dietary supplement and is not regulated by the U.S. Food and Drug Administration (FDA) as a cure or treatment for diseases. The FDA has taken legal action against companies that made unverified claims about tamanu oil’s benefits.

Studies suggest topical tamanu oil can trigger allergic reactions in some people. Those with tree nut allergies should avoid tamanu oil, since it is derived from a tree nut species.

Alternatives to tamanu oil

Tamanu is a nut-derived oil rather than an essential oil, but several essential and carrier oils may serve as alternatives depending on the benefit you seek. Use them as directed; some require dilution with a carrier oil before skin application to reduce irritation risk.

Here are three alternatives and their typical benefits.

• Tea tree oil. Extensively researched, tea tree oil has both anti-inflammatory and antibacterial effects, making it useful for minor wounds, itching, and conditions like eczema and acne.
• Argan oil. Also called Moroccan oil, argan oil shares many potential benefits with tamanu oil, including wound-supporting, anti-aging, acne-helping, and UV-protective properties. It’s an effective moisturizer for skin and hair.
• Castor oil. An economical option with similar uses, castor oil offers antifungal, antibacterial, and anti-inflammatory actions that may help treat fungal infections, mild skin irritation, and small cuts. It’s also a moisturizer for hair and skin.

Where to buy tamanu oil

Tamanu oil is available at many natural food stores and beauty boutiques. It’s also sold online, for example on Amazon.

Takeaway

Tamanu oil has a long history of use for various skin concerns. Research indicates the oil has properties that could help wound healing and other inflammatory skin issues. However, people with tree nut allergies and others should avoid it, and more research is needed to confirm many of the claimed benefits.