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Sacha Inchi Oil: Complete Guide to Benefits, Fatty Acids, and Science
What does sacha inchi oil contain?
Where does sacha inchi come from?
How does sacha inchi oil compare to fish oil?
What are the health benefits of sacha inchi oil?
Does sacha inchi oil work for cholesterol?
Does sacha inchi oil work for skin?
What is the connection between sacha inchi, cholesterol, and skin after menopause?
How should sacha inchi oil be used?
What is the difference between plant-based and marine omega-3?
What is sacha inchi oil?
Sacha inchi oil is a cold-pressed plant oil extracted from the seeds of Plukenetia volubilis L., a climbing vine native to the tropical rainforest of the Peruvian Amazon, cultivated for over 3,000 years by pre-Inca civilisations. Its star-shaped seed capsules contain seeds with an exceptionally high oil content — between 35% and 60% by dry weight — making it one of the most lipid-dense plant sources known. The oil extracted from these seeds contains among the highest concentrations of essential polyunsaturated fatty acids found in any plant oil, with ALA omega-3 and linoleic acid omega-6 together representing up to 93% of its total fatty acid content.
In recent years, sacha inchi has attracted significant scientific interest as both a nutritional and cosmetic ingredient — not for one isolated compound, but for its unique combination of two essential fatty acids in a single, cold-pressable oil.
What does sacha inchi oil contain?
Sacha inchi oil contains up to 93% essential polyunsaturated fatty acids — approximately 47–54% ALA omega-3 and 34–37% linoleic acid omega-6 — making it the plant oil with the highest combined concentration of these two essential fatty acids.
The confirmed fatty acid profile of Plukenetia volubilis seed oil, based on published analyses, is approximately:
- ALA (alpha-linolenic acid, omega-3): 47–54%
- Linoleic acid (omega-6): 34–37%
- Oleic acid (omega-9): approximately 9.5%
- Saturated fats (palmitic + stearic): approximately 7%
Beyond fatty acids, the oil contains significant concentrations of vitamin E in its alpha-tocopherol (50–114 mg/g of oil) and delta-tocopherol (30–125 mg/g) forms, along with phytosterols (campesterol, stigmasterol, beta-sitosterol), flavonoids, and phenolic compounds. These minor compounds contribute to the oil's natural antioxidant capacity and oxidative stability.
A 2021 review published in Food Chemistry (ScienceDirect) identified sacha inchi as an underutilised crop with an essential fatty acid content that differentiates it from other major oleaginous plants — for context, olive oil contains approximately 1% omega-3 and 9% omega-6. No other widely available cold-pressed plant oil combines both ALA and linoleic acid at these concentrations simultaneously.
Where does sacha inchi come from?
Sacha inchi is native to the tropical rainforests of the Amazon basin, primarily Peru and Colombia, where it has been cultivated since pre-Inca times. The plant is a climbing vine that produces distinctive star-shaped fruit capsules, each containing four to seven seeds.
Commercial cultivation has expanded beyond South America to Southeast Asia — particularly Indonesia, Vietnam, and Thailand — where climatic conditions support year-round production. A Scientific Reports study published in 2022 documented the lipid composition of multiple Plukenetia species across Amazonian growing regions, confirming that all cultivars maintained a very high content of polyunsaturated fatty acids (82.6–86.7% of total fatty acids) and at least 46.6% ALA — with some varieties reaching 57.4% ALA.
The oil is extracted by cold pressing at temperatures below 40°C to preserve the integrity of polyunsaturated fatty acids, which are sensitive to heat, light, and oxidation. Cold pressing is the only extraction method that retains the natural tocopherol content, which in turn protects the oil's fatty acids from oxidative degradation.
How does sacha inchi oil compare to fish oil?
Sacha inchi oil and fish oil provide omega-3 in fundamentally different forms and serve different but complementary functions.
Fish oil provides EPA and DHA directly — the long-chain omega-3 fatty acids with well-established effects on triglyceride reduction, inflammation resolution, and neurological function. The body can use them immediately without conversion.
Sacha inchi oil provides ALA — the plant-derived omega-3 that must be partially converted to EPA and DHA in the liver, but which has its own independently validated biological functions. Critically, ALA contributes to the maintenance of normal blood cholesterol levels — a health claim authorised by the European Food Safety Authority (EFSA, EU Regulation 432/2012) at a daily intake of 2 g of ALA. This cholesterol-maintenance mechanism operates via the improvement of hepatic LDL receptor function, independently of ALA's conversion to long-chain omega-3s.
Sacha inchi also contains linoleic acid (omega-6) — absent from fish oil — which is a direct structural precursor of skin ceramides and a component of the skin's hydrolipidic film. Fish oil cannot provide this function.
From a sustainability standpoint, sacha inchi is a terrestrial plant source, avoiding the heavy metal accumulation (mercury, lead), microplastic contamination, and overfishing concerns associated with marine-derived oils. A Nutrition Research Reviews review (2025, Cambridge University Press) identified accessible, sustainable plant-based sources of omega-3 as an urgent nutritional and environmental priority.
What are the health benefits of sacha inchi oil?
Sacha inchi oil has demonstrated benefits for cholesterol, blood pressure, and skin barrier function. A randomised, double-blind, placebo-controlled trial in adult humans confirmed reductions in LDL cholesterol, total cholesterol, and systolic blood pressure, alongside increased HDL cholesterol at month four.
Cholesterol and lipid profile
A pilot clinical study published in Rev Peru Med Exp Salud Publica examined the effect of sacha inchi oil on lipid profiles in patients with hypercholesterolaemia. Results showed reductions in total cholesterol and LDL cholesterol. A subsequent randomised, double-blind, placebo-controlled trial published in Food and Chemical Toxicology (Gonzales & Gonzales, 2014, PubMed) in adult human subjects confirmed that sacha inchi oil consumption significantly reduced serum total cholesterol, LDL cholesterol, and arterial blood pressure, and increased HDL cholesterol at month four. This is consistent with the EFSA-validated mechanism: ALA, at 2 g per day, contributes to the maintenance of normal blood cholesterol levels (EU Regulation 432/2012).
Blood pressure
The same randomised controlled trial reported a significant reduction in systolic blood pressure of 11.6 mmHg (a 9% reduction) and diastolic blood pressure of 9.3 mmHg (a 12% reduction) in participants consuming sacha inchi oil compared to controls. A 2026 systematic review published in Discover Food (Springer Nature) identified cardiovascular and cardiometabolic benefits as among the most consistently supported outcomes in published sacha inchi clinical literature.
Skin and dermatological applications
Sacha inchi oil has been evaluated in dermatological contexts, primarily for its essential fatty acid content and its role in skin barrier function. The systematic review (Discover Food, 2026) noted that pre-treatment of skin tissue with sacha inchi oil before UV irradiation did not lead to excessive cytokine secretion — indicating the oil does not disturb the skin's barrier function and may support its integrity. Its high linoleic acid content is directly relevant to ceramide synthesis in the stratum corneum.
Does sacha inchi oil work for cholesterol?
Yes, within the framework of an ALA-rich diet. Sacha inchi oil contains approximately 47–54% ALA omega-3. At a daily intake of 5 ml of sacha inchi oil, you receive approximately 2.4 g of ALA — meeting and slightly exceeding the 2 g threshold established by EFSA for the authorised health claim: "ALA contributes to the maintenance of normal blood cholesterol levels" (EU Regulation 432/2012).
The mechanism is well established. ALA, as a polyunsaturated fatty acid, improves the function of hepatic LDL receptors — the surface proteins on liver cells responsible for capturing and clearing LDL cholesterol from circulation. When ALA replaces saturated fats in the diet, LDL receptor expression and efficiency improve, reducing circulating LDL. This is a dietary mechanism, not a pharmaceutical one: it requires consistent daily intake as part of a balanced diet.
Clinical evidence supports this pathway. Meta-analyses of observational studies have shown that increasing dietary ALA is associated with a 10% lower risk of total cardiovascular disease and a 20% reduced risk of fatal coronary heart disease. Three major randomised controlled trials — the AlphaOmega trial, the PREDIMED trial, and the Lyon Diet Heart Study — all demonstrated cardiovascular benefits from ALA-rich dietary patterns.
Does sacha inchi oil work for skin?
Yes, through two distinct mechanisms — dietary and topical.
Taken orally: ALA and linoleic acid are essential fatty acids that the body uses as precursors for skin ceramide synthesis. Ceramides are the primary lipid component of the stratum corneum — the skin's outermost protective layer. Because the body cannot synthesise ALA or linoleic acid independently, their dietary supply directly influences the lipid composition of the skin barrier. Research has shown that the fatty acid composition of the stratum corneum is partially determined by dietary fatty acid intake.
Applied topically: sacha inchi oil provides ALA and linoleic acid directly to the skin surface, where they serve as substrates for barrier repair. A review published in Skin Pharmacology and Physiology confirmed that polyunsaturated omega-3 fatty acids play a structural role in cutaneous keratinocyte membranes and influence the lipid composition of the stratum corneum. When this barrier is compromised — by age, hormonal change, hot water, alkaline soaps, or sleep deprivation — topical application of an oil rich in both ALA and linoleic acid supports ceramide replenishment from the outside in.
The omega-6/omega-3 ratio of sacha inchi oil (approximately 1:1) is particularly relevant here. The skin barrier requires both ALA (omega-3) and linoleic acid (omega-6) simultaneously — neither alone is sufficient for complete barrier restoration.
What is the connection between sacha inchi, cholesterol, and skin after menopause?
When estrogen declines during perimenopause, LDL cholesterol rises and the skin barrier weakens simultaneously — because estrogen regulates both hepatic lipid metabolism and cutaneous lipid synthesis. Sacha inchi oil is the only widely available plant oil that addresses both deficits: its ALA supports cholesterol maintenance, its linoleic acid supports ceramide synthesis in the skin.
Sacha inchi oil is the only widely available plant oil that addresses both deficits with a single ingredient. Its ALA content supports hepatic LDL receptor function and meets the EFSA cholesterol-maintenance threshold. Its linoleic acid content provides the omega-6 precursor that the skin barrier requires for ceramide synthesis. One oil. Two systems. One shared lipid biology.
This is not a coincidence of formulation — it is a consequence of the seed's exceptional fatty acid composition, combining the two essential fatty acids that the human body most urgently requires but cannot produce.
How should sacha inchi oil be used?
Sacha inchi oil is used in two ways: orally at 5 ml per day to meet the EFSA 2 g ALA threshold for cholesterol maintenance, and topically as a few drops on clean damp skin to restore the lipid barrier. It should never be heated above 40°C.
Oral (dietary supplement): 5 ml per day — one teaspoon — provides approximately 2.4 g of ALA, meeting the EFSA threshold for the cholesterol-maintenance health claim. Clinical trials have used doses of 10–15 ml per day for lipid profile benefits, with good tolerability reported from week six onward. Sacha inchi oil should not be heated above 40°C, as polyunsaturated fatty acids are degraded by heat, light, and oxidation. It is best taken cold, added to salads, smoothies, or consumed directly.
Topical (skincare): a few drops applied to clean, slightly damp skin allows ALA and linoleic acid to penetrate the stratum corneum and support the lipid matrix of the skin barrier. Its natural tocopherol content provides antioxidant protection and contributes to formulation stability when combined with other oils.
Storage: store in a dark, airtight glass bottle away from direct light and heat. The natural vitamin E content of cold-pressed sacha inchi oil provides oxidative protection, but exposure to air and light will progressively degrade polyunsaturated fatty acids.
Written by the Dafee Science Team — published 15/06/2026. Dafeepédia content is developed from European regulatory sources (EFSA, EC Regulation 432/2012) and peer-reviewed scientific literature, and reviewed for accuracy before publication.
The Dafee Metabolic Intelligence app interprets standard lipid blood panels as metabolic patterns rather than isolated thresholds — available at app.dafee.fr.