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Oenothera biennis


CAS Number: 90028-66- 3

EINECS Number: 289-859-2

Product Code:  PCO4033

INCI Name:  Oenothera Biennis (Evening Primrose) Oil


SYNONYMS  Oenothera biennis L.

COMMON NAMES  Evening Star, Sun Drop, King's Cure-all, Weedy Evening Primrose, German Rampion, Hog Weed






Palmitic Acid C16:0

5.00 – 7.00

Stearic Acid C18:0

1.00 – 3.00

Oleic Acid C18:1 (n-9)

5.00 – 10.00

Linoleic Acid C18:2 (n-6)

68.00 – 76.00

Gamma-Linolenic Acid C18:3 (n-6)

9.00 – 16.00


Out of Stock. Product will available soon.

1 kg (2.20 lb): 24% OFF
$66.90   $50.84
2 kg (4.41 lb): 27% OFF
$128.40   $93.70
5 kg (11.02 lb): 30% OFF
$308.00   $215.60
10 kg (22.04 lb): 33% OFF
$589.00   $394.60

Our organically crafted Evening Primrose Oil (EPO), also called Evening Primrose Seed Oil, is cold pressed from the seeds of Oenothera biennis, native to eastern and central North America. Also popularly referred to as Evening Star, Sundrop, King's Cure-All or Fever-Plant, Oenothera biennis has yellow flowers that bloom and release their scent in the evenings, hence the name evening primrose.

Evening Primrose Oil contains a high concentration of Gamma-Linolenic Acid (GLA), a polyunsaturated fatty acid largely responsible for the remarkable healing properties of the plant. Evening Primrose Oil can be incorporated into natural formulations for creams, serums, lotions, body butters, and hair care products, among others, and can help keep the final products light in weight, which will thus promote their speedy absorption into the skin.


Evening Primrose Oil is intensely rich and nourishing on the skin and hair making it ideal for numerous cosmetic applications. Used topically, Evening Primrose Seed Oil works as a fast-absorbing, non-greasy moisturiser that can be used as a nighttime serum to soothe acne, balance skin's oil production, and reduce the appearance of stretch marks, wrinkles, and scars. Its deeply hydrating qualities are known to prevent skin from losing moisture, thereby softening, nourishing, and protecting the skin, which ultimately revitalizes and rejuvenates the complexion.On acne-prone skin, Oenothera Biennis Seed Oil functions as a deep cleaning agent that clears blocked pores and soothes irritated skin with its anti-inflammatory properties. Its regenerative and healing properties are ideal for use on skin afflicted with rashes, eczema, psoriasis, and signs of aging.

In addition to skin care formulations, Evening Primrose Oil can also be applied in shampoos and conditioners, where it is known to balance the scalp's natural oils, thus reducing and preventing dandruff. Evening Prim Rose Oil strengthens the strands against damage caused by environmental stressors, such as harsh weather, UV radiation, as well as heat and residue from hair styling products, thus leaving it lustrous and resilient.


Technical Data Sheet (TDS)

Material Safety Data Sheet (MSDS)

Certificate of Analysis(COA) - Current Batch

Looking for Certificate of Analysis (COA) from an earlier batch?


Technical Data Sheet (TDS)

Material Safety Data Sheet (MSDS)

Certificate of Analysis(COA) - Current Batch

Looking for Certificate of Analysis (COA) from an earlier batch?

Cosmetic Declaration

Nature In Bottle certify that Evening Primrose Oil is suitable for cosmetic application and is not included in the list of substances prohibited in cosmetic products. Neither does it contain parabens, restricted preservatives, colorants or UV filters (Annex II - VI of EU Regulation (EC) No 1223/2009).

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Extraction Method

Nature In Bottle certify that Evening Primrose Oil has been extracted using cold pressing which means it is minimally processed using mechanical extraction (pressure) and low-temperature controlled conditions [at around 80-90°F (26-32°C)] controlled conditions to extract the oil. The phytonutrient-rich oil is then fine-filtered using a screen, to remove any significant solids or undesired impurities from the oil. No chemical solvents, no high-heat temperatures, and no further chemical refining to alter the condition (colour, scent) of the oil.

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Animal Testing

Nature In Bottle certify that Evening Primrose Oil is cruelty-free and free of animal testing.
Nature In Bottle does not conduct or commission animal testing of any cosmetic ingredient, raw material, or formulation of any finished product in the context of Cosmetics Regulation (EC) 1223/2009. Additionally, we do not buy any ingredient, formulation, or product from any supplier or manufacturer that conducted, commissioned, or had been a party to Animal Testing. We also encourages customers who manufacture cosmetics and skin care products to avoid animal-tested ingredients and offer cruelty-free products to their customers.

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Vegan Statement

Nature In Bottle certify that Evening Primrose Oil contain no animal ingredients or animal by-products, use no animal ingredients or by-products in the manufacturing process, nor does the above product come in contact with any animal products during storage and transportation.

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TSE/BSE Statement

Nature In Bottle certify that Evening Primrose Oil is free of Transmissible Spongiform Encephalopathy (TSE) and Bovine Spongiform Encephalopathy (BSE). We further declare that this product is Dioxin Free.

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Non-GMO Statement

Nature In Bottle certify that Evening Primrose Oil is manufactured without the use of genetically modified organisms and without the use of raw materials or processing aids containing or derived from genetically modified material. As such, Evening Primrose Oil should be considered non-Genetically Modified in the context with the directives outlined in Regulation (EC) No. 1830/2003 and 1829/2003.

Nature In Bottle also declares that Evening Primrose Oil has not been:
1) Exposed to Irradiation
2) Derived from Sewage Sludge
3) Treated with Ethyl Oxide

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Gluten Free Statement

Nature In Bottle can approve that Evening Primrose Oil does not contain as an ingredient and is not manufactured on processing equipment that comes in contact with gluten or products containing gluten.

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Melamine Free Statement

Nature In Bottle confirm that Evening Primrose Oil is free of any Melamine and hence should be considered to be Melamine-free.

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Nanomaterials Declarartion

Nature In Bottle can approve with reference to Evening Primrose Oil that no Nanomaterials were added at any stage of the manufacturing/production process, in accordance with EU Cosmetics Regulation.

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California Proposition 65 Declaration

Nature In Bottle certify that Evening Primrose Oil does not contain chemicals that are listed on California's Safe Drinking Water & Toxic Enforcement Act of 1986, also commonly known as Proposition 65 (Prop 65).

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REACH Conformance

Nature In Bottle declare that Evening Primrose Oil is compliant with the European Union Regulation (EC) 1907/2006 governing the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) and does not contain substances above 0.1% weight of a Substance of Very High Concern (SVHC) listed in Annex XIV as of July 16, 2019.

Furthermore, Evening Primrose Oil is also compliant with the European Union Regulation (EC) 1272/2008 Classification, Labeling and Packaging of Substances and Mixtures (CLP Regulation) under entries 28 to 30 of Annex XVII of REACH, which prohibits the use of carcinogenic, mutagenic or reprotoxic category 1A or 1B substances (CMR category 1A or 1B substances) in products supplied to the general public.

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Natural Criteria Statement

Based on the ISO 16128-1:2016 (Definitions for ingredients) and ISO 16128-2:2017 (Criteria for ingredients and products), Nature In Bottle can advise that Evening Primrose Oil would have a Natural Origin Index of 1 and therefore, could be considered to come under the definition of a 'Natural Ingredient'.

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Residual Solvents

Based on our knowledge of the production process, raw materials and equipments used, there is no potential for any residual solvents to be present in Evening Primrose Oil.

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Non-CITES Declaration

Nature In Bottle certify that Evening Primrose Oil is manufactured completely from raw materials none of which is listed on the Appendices of the the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).

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Sustainable natural ingredients, from a source you can trust



All our products are created with respect for nature, ensuring unmatched attention to quality and detail at every step of the process. We select and source oils that fit the ideal fatty acid profile to provide the maximum therapeutic benefits. No chemical solvents, no high-heat temperatures, and no chemical refining is done to alter the condition (colour, scent) of the oil.



We only offer products that are certified organic, wildcrafted in their natural habitat, or grown using organic practices in cases where organic certification is unavailable or impractical. We rely on our relationships with the distiller/supplier and knowledge of their good practices to ensure that the product is free from pesticides and adulteration.



We are a non-MLM company, selling online directly to our customers located in over 220 countries across the world. Our pricing is always wholesale, for every customer - there is no need to sign up or become a member to avail the benefits of our wholesale pricing. We also provide hugely subsidised rates for international shipping.