Best black seed oil: how to choose a quality one? The 7 criteria
In short: the best black seed oil for skin and hair is a certified organic, virgin, cold-pressed and 100% pure oil (INCI: Nigella Sativa Seed Oil, nothing else), with the origin of the seeds stated and sold in an amber glass bottle. Its peppery scent and amber colour are good signs: they show an unrefined oil that has kept its fatty acids and its thymoquinone.
Black seed oil, nigella oil, black cumin oil: behind these names, the qualities on sale vary a lot. Some oils are refined, deodorised, cut with another oil or sold in clear plastic bottles. Here are the 7 criteria to check before you buy, the traps to avoid and how to recognise a good oil once the bottle is open.
The 7 criteria for choosing a quality black seed oil
| Criterion | What to check | Our organic black seed oil |
|---|---|---|
| 1. Organic certification | A recognised label (COSMOS Organic, Ecocert), not just the word "natural" | COSMOS Organic certified by Ecocert, Cosmebio-labelled brand |
| 2. Extraction | "First cold pressing", "virgin", no solvent or hexane | First cold pressing, virgin oil |
| 3. Purity | A single ingredient in the INCI list: Nigella Sativa Seed Oil | 100% pure, no preservative, no added fragrance |
| 4. Origin | The origin of the seeds and the place of pressing are stated | Seeds from Egypt, oil pressed in Germany |
| 5. Bottle | Amber glass, which protects the oil from light | Amber glass bottle, 50 or 100 ml |
| 6. Scent and colour | Spicy, peppery scent; amber to golden-brown colour | Natural peppery scent, the sign of a non-deodorised oil |
| 7. Transparency | Fatty acid profile, shelf life after opening, directions for use | Rich in linoleic acid (approx. 55%) and oleic acid (approx. 23%), 12 months after opening |
1. A certified organic black seed oil
Nigella (Nigella sativa) is a small plant whose black seeds are pressed to obtain the oil. An organic certification such as COSMOS Organic, controlled by Ecocert, guarantees seeds grown without synthetic pesticides and a process checked from seed to bottle. For an oil you apply neat on your face or scalp, it is the first thing to look at.
2. Cold-pressed and virgin
Cold pressing extracts the oil mechanically, without heating the seeds or using solvents. The oil stays virgin: it keeps its unsaturated fatty acids, its natural vitamin E and the thymoquinone that black seed is known for. A refined oil is paler, almost odourless… and far less interesting for the skin.
3. 100% pure: read the INCI list
The ingredient list should fit on one line: Nigella Sativa Seed Oil. If you also see Helianthus Annuus (sunflower), Glycine Soja (soybean) or a fragrance, the oil is diluted. This is common with very cheap black seed oils.
4. The origin of the seeds
Egypt, Ethiopia, India, Syria: nigella grows in several countries. What matters is that the brand states the origin of the seeds and where the oil is pressed, proof of a traceable supply chain. The seeds of our oil come from Egypt, where nigella has been used in beauty care since Antiquity, and the oil is pressed in Germany.
5. An amber glass bottle
Rich in unsaturated fatty acids, black seed oil is sensitive to light and heat. Amber glass protects it; a clear plastic bottle makes it age faster. Then keep it away from light and use it within 12 months of opening.
Traps to avoid
- An odourless oil: it has often been refined or deodorised.
- "Black seed oil" at the top of a list of several oils: it is a blend, not a pure oil.
- No stated origin and no certification: there is no way to know what is in the bottle.
- An unusually low price for a large volume: virgin black seed oil has a low yield, it cannot sell at the price of a cooking oil.
- Medical promises: a cosmetic oil nourishes and cares for skin and hair, it does not cure.
How to recognise a good black seed oil once opened
- Colour: amber to golden brown, clear.
- Scent: spicy, peppery, slightly herbal. It is strong, and that is normal.
- Texture: fluid, it absorbs quickly and leaves no greasy film on the skin.
- A rancid smell is never normal: a stale-butter smell means the oil has oxidised.
Our organic black seed oil: what sets it apart
Our organic black seed oil ticks all 7 criteria: COSMOS Organic certified by Ecocert, virgin and cold-pressed, 100% pure, seeds from Egypt, amber glass bottle, packaged in France by an ESAT (a sheltered-employment workshop). Light and non-greasy, it nourishes combination and blemish-prone skin, helps keep the complexion clearer and soothes the feeling of a tight scalp. One drop in your serum is enough for a more radiant complexion.
50 ml or 100 ml: which size to choose?
| Use | 50 ml bottle | 100 ml bottle |
|---|---|---|
| Face (1 to 2 drops in the evening) | 30 to 45 days | 60 to 90 days |
| Body | 20 to 30 days | 40 to 60 days |
| Hair and scalp | 15 to 25 days | 30 to 50 days |
| Beard | 30 to 40 days | 60 to 80 days |
To discover the oil or for the face only, 50 ml is enough. For scalp oil treatments, choose 100 ml.
How to use it to get the most out of it
On the face: 1 to 2 drops in the evening on clean, slightly damp skin, pressed in gently. Not keen on the peppery scent? Mix it half and half with organic jojoba oil: the scent softens and the care stays light, ideal for combination skin.
On the scalp: a few drops massaged in for 3 minutes before shampooing, left on for 30 minutes or overnight, once or twice a week. For a complete routine, the hair growth oil pack brings together organic black seed, castor and jojoba oils: the trio that strengthens hair and promotes growth.
Good to know: your basket automatically applies 10% off from 2 oils and 15% off from 3 oils. Black seed + jojoba, or black seed + castor + jojoba: your duo or trio is discounted with no code.
All the steps in detail: organic black seed oil: benefits and how to use it and black seed oil for hair.
Why choose Naturoleum oils?
Our oils are 100% pure, cold-pressed and COSMOS Organic certified by Ecocert; the brand is also Cosmebio-labelled. They are packaged in France by an ESAT, in glass bottles, and keep for 12 months after opening.
Frequently asked questions about choosing black seed oil
What is the best black seed oil?
A certified organic, virgin, cold-pressed, 100% pure oil (a single ingredient: Nigella Sativa Seed Oil), with a stated origin, sold in amber glass. Its peppery scent is a sign of an unrefined oil.
Are black seed oil, nigella oil and black cumin oil the same thing?
Yes: they are all names for the oil of Nigella sativa seeds. It has nothing to do with the cumin used as a spice (Cuminum cyminum).
How can I tell if a black seed oil is pure?
Read the INCI list: it should only contain Nigella Sativa Seed Oil. A pure oil has an amber colour, a strong peppery scent and a fluid texture.
Where can I buy a quality organic black seed oil?
From a brand that shows its certification, the origin of the seeds and the composition. Our organic black seed oil is COSMOS Organic certified by Ecocert, cold-pressed, in 50 or 100 ml glass bottles, delivered in France and Europe.
How long does black seed oil keep?
12 months after opening, away from light and heat, with the cap tightly closed. If it starts to smell rancid, stop using it.
Read also: 5 benefits of black seed oil for skin and hair and organic black seed oil: benefits and how to use it.
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