Onion Hair Oil Compared: Which Onion Hair Oil Wins For You

The The Indie Earth Red Onion Hair Growth Oil and the AYURVEDASHREE Onion Black Seed Hair Oil both target the same goal, but they take different routes to get there. We compared their formulas, ease of use and value to show where each one wins.
| Factor | The Indie Earth Red Onion Hair Growth Oi | Zyzven Naturals Onion Growth Oil, 50 ml |
|---|---|---|
| Formula | The Indie Earth blends red onion with 29 herbs plus argan and jojoba. The most loaded formula here. | AYURVEDASHREE combines onion and black seed in a sesame Ayurvedic base. Traditional and focused. |
| Best for | Buyers who want maximum herbal firepower. Hair fall concerns. | Buyers who want authentic Ayurvedic blending. Traditional remedy fans. |
| Scent | Well-masked with no harsh onion smell. Pleasant herbal aroma. | Strong herbal scent. Authentic but potent. |
| Size | Large 200 ml bottle for long routines. Great for committed users. | 100 ml mid-size bottle. Good for trying the category. |
| Value | Fair price for the ingredient count. Best for herbal maximalists. | Good price for an Ayurvedic blend. Best for traditionalists. |
Our Verdict
The Indie Earth wins for most buyers because 29 supporting herbs plus red onion is the most complete hair fall formula. Choose AYURVEDASHREE if you prefer a traditional Ayurvedic sesame-based blend with black seed.
More Top Picks in This Category
Not sold on either of these two? Here are more bestselling options worth considering.

Best for: Best for buyers who want an Ayurvedic onion and black seed blend.
AYURVEDASHREE Onion Black Seed Hair Oil, 100 ml
- Red onion, black seed, coconut and almond
- Sesame oil Ayurvedic base
- No sulfates, parabens or mineral oils
- Supports scalp health and shine
Pros
- True Ayurvedic oil blend
- Good mid-size bottle for the price
Cons
- Herbal scent is strong
- Needs overnight application for best results

Best for: Best for budget buyers who want a mainstream onion hair oil.
Emami 7-in-1 Onion Blackseed Hair Oil, 200 ml
- 7-in-1 anti-hairfall formula
- Onion and blackseed core
- Strengthens follicles
- Fights hair loss and breakage
Pros
- Big-brand formula at a low price
- Large 200 ml bottle
Cons
- Contains some silicones
- Scent is perfumed
Want the Full Picture?
The Onion Smell Problem: Managing It Honestly
Every onion oil buyer asks about the smell, and vague reassurances do not help. The truth: onion hair oils have a distinct sulfurous scent that is noticeable during application and for an hour or two after, and no formula eliminates it completely. The black seed oil in blends like the AYURVEDASHREE and Emami options here masks it partially with a warm, peppery scent, but masking is not removing. Plan applications for evenings or days at home, not before events.
What actually reduces the odor: shampooing twice after the treatment, adding a few drops of a pleasant essential oil like lavender to your wash, and not over-applying, since excess oil means excess smell. The scent does wash out fully with proper cleansing, it does not linger for days the way some reviewers claim, provided the oil is actually removed rather than left to go rancid on the scalp. If the smell is a dealbreaker, rosemary-based growth oils offer a similar routine with a far more pleasant scent and easier wash-out. For keeping the scalp comfortable through any oil treatment, our acupressure scalp massage guide shows the technique that improves absorption without aggressive rubbing.
Patch Testing Pungent Formulas
Onion oil's sulfur compounds make it more irritating than bland carrier oils, so the patch test is especially important here. Apply behind the ear, wait 48 hours, and watch for redness or itching. The scalp's warmth intensifies the sulfur activity, so a borderline patch test means the full scalp will likely react. Start with the shorter leave-on time, 30 minutes before washing, and only extend to longer durations once tolerance is confirmed.
Do not apply onion oil to broken, scratched, or freshly exfoliated scalp skin, since the sulfur compounds sting open skin significantly. If you develop itching that builds over hours rather than fading, that is sensitization, not adjustment, and continuing will make it worse. Rinse thoroughly, since residue left on the scalp prolongs both the smell and the irritation risk. For gentler scalp massage techniques to pair with tolerant oils, our acupressure scalp massage guide shows the method.
Scalp Odor: When It Is Normal and When It Is Not
Scalp odor has causes beyond infrequent washing, and onion oil users should know the baseline. Normal sebum has a faint, slightly sour smell that intensifies by day three without washing, and that is simply biology. Abnormal odor, persistently sour, cheesy, or musty even right after washing, can signal yeast overgrowth, bacterial imbalance, or seborrheic dermatitis, and no amount of scented oil fixes those.
The diagnostic: if the odor disappears completely after a proper wash and returns gradually, your routine is the issue, wash more often or clarify monthly. If it persists through washing, the scalp needs treatment, not fragrance, and a medicated shampoo is the next step. Heavy oiling can worsen odor by trapping sweat and sebum against the scalp, so onion oil treatments should always end with thorough cleansing. For restoring scalp balance after treatment phases, our head spa scalp guide covers the deep-cleanse rituals that reset the scalp between treatment phases.