Nigellin® (Nigella sativa) Black Seed Oil Extract Capsules
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Nigellin® Onyx Black Seed Oil Extract is an herbal supplement standardized to 5% of the treasured bioactive thymoquinone molecule. Expertly created with the best and most eco-friendly extraction process using no chemical solvents, our black seed oil extract contains the highest amount of thymoquinone and more antioxidants over the leading competitors’ extracts. (ref)(ref)*
Nigellin® Black Seed Oil Extract Benefits
- Supports healthy immune system function (ref)*
- Promotes healthy cognition and memory (ref)*
- Supports cardiovascular health and healthy blood pressure (ref)*
- Supports liver health (ref)*
- Promotes antioxidant activity (ref)*
Nigellin® Black Seed Oil Extract Description
Nigella sativa (also known as Black Caraway Seed, Black Seed Oil, and Kalonji) is a prized flowering plant which produces black seeds containing a powerful bioactive molecule called thymoquinone (1).
Its seeds contain a variety of constituents and fatty acids, but its’ thymoquinone has been isolated as its primary bioactive ingredient. The black seeds of the N. sativa plant have been used as a pungent spice and condiment, and the oil pressed from the seeds has been used as a folkloric remedy or as cosmetic oil for the skin and hair (2)(1).
It is known by many names depending on its cultural location; for instance, it is known as black cumin in English-speaking countries even though black cumin comes from another plant (B. bulbocastanum). Elsewhere in the world, N. sativa may be called shonaiz in Persian and kalajira in Bangali (3).
The Nigella sativa plant is part of the Ranunculaceae family which is native to southwest Asia and has been grown and cultivated in North Africa and Europe for over 2000 years (2)(4).
Thymoquinone is found in the essential oil portion of the N. sativa seed. The remainder of the seeds are proteins, saponins, and alkaloids (2).
The antioxidants found in N. sativa are found in the reduced form of thymoquinone. The mitochondria within the cell convert thymoquinone (which is an oxidized form) into a reduced form called hydroquinone which possesses the high radical scavenging capabilities for which thymoquinone is known (5).
Since the thymoquinone concentration is the most important bioactive constituent, it is the ingredient to which N. sativa seed extracts are standardized. The two most common extraction methods are to cold press the oil or to use a chemical solvent like hexane or methanol. A third option for extraction has been proven to provide the highest amount of thymoquinone and antioxidants and is the preferred industry method for extraction of the active properties of the seed. This method is called supercritical fluid extraction; and because it uses liquid carbon dioxide to extract the phenolic compounds from the crushed seeds, it provides a higher yield of active ingredients and is the most environmentally friendly choice (6).
Pure Nootropics chooses to use this superior form of black seed oil extract which has been expertly formulated by the Sabinsa company in their trademarked product Nigellin® (7)(add link to COA).
Nigellin® Black Seed Oil Extract Dosage
Pure Nootropics’ Nigellin® Onyx Black Seed Oil Extract Capsules provide 200 mg of N. sativa extract standardized to 5% thymoquinone (a minimum of 10 mg of thymoquinone) per capsule. Suggested use for adults is 1 capsule by mouth once daily, or as directed by your healthcare practitioner.
Nigellin® Side Effects
- sativa use, whether in seed, oil, or extract form, has been studied for safety in human clinical trials. At normal doses, N. sativa extract has only caused mild side effects which may include nausea, heartburn, or bloating. Several studies have tracked the use of N. sativa over several months and found it to be generally safe. At an extremely high dose (over 2,000 mg per day), N. sativa caused kidney toxicity in one reported case. When used safely and appropriately, N. sativa oil and crushed seeds may result in a slight increase of kidney and liver enzymes on bloodwork (8).
- sativa may interact with medications that use the substrates CYP2D6 and CYP3A4. Please consult your healthcare practitioner before supplementation if you are taking medications (8).
† For further information, please see references tab above.