Onion Hair Oil

Onion Hair Oil

£14.99
£29.99
£14.99
Tax included. Shipping calculated at checkout.

Onion Hair Oil is a natural hair strengthening oil that nourishes the scalp, reduces hair fall, and supports healthier hair growth. Enriched with onion seed extract and plant oils, it helps improve scalp circulation, reduce breakage, and boost shine without heaviness. Lightweight and non-greasy, this oil is ideal for daily hair care to make hair feel stronger, smoother, and more manageable.

120-Day Money Back Guarantee

Not happy with your results? Return any unused product within 120 days for a full refund — no questions asked.

How soon will I start seeing results?

Most users notice visible improvements within 2 to 4 weeks of consistent use, though results may vary based on hair type and routine.
Is it safe for daily use?

Yes, all Replenhair products are formulated to be gentle and suitable for daily use when used as directed.
Ingredients & Benefits

Hand-blended Oils including Allium Cepa (Onion) Bulb Extract, Nigella Sativa (Black) Seed Oil, Oryza Sativa (Rice) Bran Oil , Rosmarinus officinalis (Rosemary) Leaf Oil, Tocopherol (Vitamin E), Fragrance Essential Oil
Shipping, Returns

All orders are carefully packed and shipped within 24 to 48 business hours to ensure safe and timely delivery.

Onion Hair Oil
Onion Hair Oil - Replenhair
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AS SEEN ON

PROVEN BENEFITS. BACKED BY RESULTS.

Every Replenhair formula is thoughtfully developed using high quality, nature inspired ingredients and clinically inspired research. Our products are designed to support healthier looking hair and a balanced scalp with consistent use.

93%

noticed improved scalp comfort

95%

felt hair looked healthier with regular use

91%

experienced smoother, more manageable hair

90%

saw visible improvement in four weeks

Your hair growth journey

Same routine, real results. Here is what to expect — week by week.

  1. Week 1 Nourished scalp.

    Massage it in — the scalp feels conditioned and less tight from week one.

  2. Week 4 Less shedding.

    Fewer strands in the brush as roots grow stronger.

  3. Month 2 Baby hairs appear.

    New growth starts showing along the hairline and part.

  4. Month 3+ Visible thickness.

    Fuller, denser-looking hair you can see in the mirror.

Nature inspired. Clinically Tested.

We have traveled the world in search of only scientifically proven ingredients backed by decades of research.

Key Active

Onion Extract

Helps reduce hair fall and supports stronger hair roots.

Onion Extract
Clinically Inspired

Black Seed Oil

Nourishes the scalp and helps improve hair strength and thickness.

Black Seed Oil
Scalp Care

Rosemary

Refreshes the scalp and supports healthier, stronger looking hair.

Rosemary
Gentle Formula

Vitamin E

Supports scalp health and helps hair look shiny and healthy.

Vitamin E
Clean Beauty

Essential Oil Blend

Gives a pleasant natural aroma and enhances the overall experience.

Essential Oil Blend

Your routine deserves better.

Replenhair vs Other Brands

Onion oil that actually strengthens roots — backed by real actives.

Replenhair
Replenhair
Other brands
Other brands
  • Onion oil rich in sulphur
  • Reduces hair fall, strengthens roots
  • Nourishes the scalp
  • No mineral-oil fillers
  • Cruelty-free & vegan
  • Absorbs without heaviness
  • Cheap mineral-oil bases
  • Greasy formulas that never absorb
  • Synthetic fragrance overload
  • Diluted, low-potency actives
  • No cold-pressed or transparent sourcing

Onion Hair Oil helps nourish the scalp, strengthen hair roots, reduce hair fall, and support healthier, smoother hair with regular use.

Yes. Onion extract is known to support better scalp health and circulation, which can create a healthier environment for stronger, fuller-looking hair over time.

Massage a small amount into your scalp and hair from roots to tips. Leave on for at least 30 minutes or overnight, then wash with a gentle shampoo. Use 2–3 times a week.

Yes. This lightweight formula works well for dry, damaged, curly, and normal hair types. If your scalp is oily, use a smaller amount to avoid excess residue.

No. When used in the right amount, this oil absorbs into the scalp and strands without leaving hair feeling heavy or greasy.

Many users notice softer, smoother hair after a few uses. Visible reduction in hair fall and stronger hair tends to appear with consistent use over several weeks.