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Double Wood vs Organic India Holy Basil (Tulsi) (2026)
Disclosure: We earn commissions on purchases made through our links. This never influences our scores. Editorial policy
The Verdict
Double Wood takes it on our rubric, 91 to 87 on our 0-100 execution score, and the entire gap sits in our dosing and form pillar, 25 against 22. That pillar is doing exactly what it should here: Holixer at 250mg is the specific extract and dose from a modern tulsi RCT, and a whole-leaf blend is not, however good the leaf is. The two tie on purity verification at 19 and on transparency at 23. Organic India holds our Top Pick badge in the holy basil scorecard, and it earns that on breadth rather than on our score: organic and Fairtrade certification, three-variety traditional preparation, and the widest US availability in the category.
In our view, buy Double Wood if you want the trial-grade extract at the trial dose, and Organic India if organic certification and whole-leaf preparation matter more to you than matching a protocol. Both are honest products and the daily cost difference is small in either direction.
Tulsi Holy Basil (Holixer Formula)
Double Wood Supplements
Tulsi Holy Basil Herbal Supplement, 180 Capsules
Organic India
Head-to-Head Comparison
| Category | Tulsi Holy Basil (Holixer Formula) Double Wood Supplements | Tulsi Holy Basil Herbal Supplement, 180 Capsules Organic India |
|---|---|---|
| Brand Score | 91/100Winner | 87/100 |
| Dosing & Form | 25/25Winner | 22/25 |
| Purity | 19/25Winner | 19/25 |
| Value | 24/25Winner | 23/25 |
| Transparency | 23/25Winner | 23/25 |
| Cost/Day | $0.27 | $0.18Winner |
| Dose/Serving | 250mg | 1000mg |
| Form | Holixer standardized Ocimum tenuiflorum leaf extract (capsule) | Whole-leaf blend (Rama + Krishna + Vana tulsi, capsule) |
| Third-Party Tested | ✓ Yes | No |
| Proprietary Blend | No | No |
Why This Comparison Matters
This is the standardized-extract question against the whole-leaf question, and in tulsi it is close to the only question that matters. Double Wood builds its capsule around Holixer, the standardized Ocimum tenuiflorum extract used in the Lopresti 2022 Frontiers in Nutrition trial, and doses it at 250mg to match that protocol. Organic India sells the leaf itself: a blend of Rama, Krishna, and Vana tulsi at 1000mg per capsule, the preparation closest to traditional Ayurvedic use and the one most US buyers have actually taken.
The certifications point the other way from the extract. Organic India carries USDA Organic, Non-GMO Project Verified, Kosher, and Fairtrade sourcing; Double Wood carries none of those and instead publishes third-party CoAs on its own brand site. Neither product holds USP or NSF certification, and neither publishes a per-lot CoA openly.
On cost, Double Wood runs about $0.27 per day for 60 servings at $15.95. Organic India runs about $0.18 per day at one capsule from a 180-count bottle at $32.99, or roughly $0.36 per day at the two-capsule intake that gets closer to the 500 to 1200mg range most stress trials used. We scored both on dosing and form, purity verification, value, and label transparency.
Detailed Score Breakdown
Tulsi Holy Basil (Holixer Formula)
Double Wood Supplements
Uses Holixer, the standardized Ocimum tenuiflorum extract from the Lopresti 2022 Frontiers in Nutrition RCT (n=100, 250mg/day x 8 weeks); rare US SKU built around a name-brand clinically tested tulsi extract
Double Wood publishes third-party CoAs on their brand site for many SKUs; cGMP manufacturing; no USP or NSF certification
About $0.27/day at 250mg Holixer; strong value for a clinically-anchored standardized extract
Holixer trademark and dose clearly disclosed; clean label; third-party testing claim with CoA available on brand site
The closest you can currently get on Amazon to the exact form and dose used in a modern, methodologically tighter tulsi RCT
Tulsi Holy Basil Herbal Supplement, 180 Capsules
Organic India
Whole-leaf blend of Rama, Krishna, and Vana tulsi (Ocimum tenuiflorum + Ocimum gratissimum); not a standardized OciBest/Holixer extract, but the dominant tulsi capsule in US retail and the form most reviewers and longtime users have experienced
USDA Organic, Non-GMO Project Verified, Kosher; Fairtrade-certified sourcing; cGMP manufacturing in India and US; no per-lot CoA published openly
About $0.18/day at 1 capsule (1000mg whole leaf) or $0.36/day at the protocol-style 2 caps/day; strong value for a certified-organic adaptogen
Full disclosure of tulsi varieties used; ingredients clean (vegan capsule, no fillers); organic and Non-GMO certifications verifiable
Organic India helped build the US tulsi category and uses Fairtrade smallholder farmers in India; the trade-off is that this is a whole-leaf product rather than a trial-grade standardized extract
How We Compared These Products
Every product in our database is scored on four equally-weighted pillars: dosing accuracy and form quality, purity verification (third-party testing), cost per clinically effective dose (not cost per pill), and label transparency. Each pillar is worth 25 points for a total of 100.
Cost per effective dose is calculated using the clinically studied dose from published research, not the manufacturer's suggested serving. If a product requires multiple servings to reach the dose used in clinical trials, that cost is reflected in the value score.
For a full explanation of our scoring methodology, see our methodology page. Prices were last checked on the dates listed for each product and may have changed.
Frequently Asked Questions
Is a standardized tulsi extract better than whole-leaf tulsi?
For matching the research, yes. Double Wood uses Holixer at 250mg, the exact extract and dose from the Lopresti 2022 RCT, which is why it earns a full 25 on our dosing and form pillar against Organic India's 22. Organic India's whole-leaf blend of Rama, Krishna, and Vana tulsi is the traditional preparation and a legitimate product, but clinical results from a standardized extract do not transfer to it directly.
Which holy basil supplement is cheaper per day?
Organic India, at about $0.18 per day at one capsule against Double Wood's $0.27. The bottles run the other way, $32.99 for 180 Organic India capsules against $15.95 for 60 Double Wood capsules. At the two-capsule intake closer to the 500 to 1200mg range used in stress trials, Organic India works out to roughly $0.36 per day.
Is either holy basil product third-party certified?
Neither carries USP or NSF certification, which is why both score 19 on our purity verification pillar. Organic India carries USDA Organic, Non-GMO Project Verified, Kosher, and Fairtrade sourcing. Double Wood publishes third-party CoAs on its brand site for many SKUs, though not per lot. Both manufacture under cGMP.
More Holy Basil (Tulsi) Comparisons
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FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.