Cheapest Holy Basil Leaf Extract on iHerb

Ranked by real cost per 10 mg of Holy Basil Leaf Extract — cheapest value first.

Prices updated Jul 25, 2026 · 10 products · Prices in USD

The priciest option here costs about 5.4× more per 10 mg of Holy Basil Leaf Extract than the best-value pick Source Naturals. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 10 mg
1
Source Naturals, Serene Science®, Theanine Serene® With Magnesium, 120 Tablets
Source Naturals, Serene Science®, Theanine Serene® With Magnesium, 120 Tablets
Source Naturals
100 mg6022.390.037View on iHerb →
2
Source Naturals, Serene Science®, Theanine Serene® With Magnesium, 60 Tablets
Source Naturals, Serene Science®, Theanine Serene® With Magnesium, 60 Tablets
Source Naturals
100 mg3012.250.041View on iHerb →
3
Source Naturals, Serene Science®, Theanine Serene® With Relora®, 120 Tablets
Source Naturals, Serene Science®, Theanine Serene® With Relora®, 120 Tablets
Source Naturals
100 mg6025.890.043View on iHerb →
4
Source Naturals, St. John's Positive Thoughts™, 90 Tablets
Source Naturals, St. John's Positive Thoughts™, 90 Tablets
Source Naturals
100 mg3013.070.044View on iHerb →
5
Source Naturals, Calm Thoughts™, 45 Tablets
Source Naturals, Calm Thoughts™, 45 Tablets
Source Naturals
100 mg156.790.045View on iHerb →
6
Source Naturals, Serene Science®, Theanine Serene® With Relora®, 60 Tablets
Source Naturals, Serene Science®, Theanine Serene® With Relora®, 60 Tablets
Source Naturals
100 mg3013.650.046View on iHerb →
7
Source Naturals, St. John's Positive Thoughts™, 45 Tablets
Source Naturals, St. John's Positive Thoughts™, 45 Tablets
Source Naturals
100 mg156.910.046View on iHerb →
8
Source Naturals, Inflama-Rest, 60 Tablets
Source Naturals, Inflama-Rest, 60 Tablets
Source Naturals
150 mg1520.290.090View on iHerb →
9
Zahler, Female Totality™, Hormonal System Support Formula, 120 Capsules
Zahler, Female Totality™, Hormonal System Support Formula, 120 Capsules
Zahler
100 mg3038.970.130View on iHerb →
10
Source Naturals, Pycnogenol® Supreme™, 60 Tablets
Source Naturals, Pycnogenol® Supreme™, 60 Tablets
Source Naturals
50 mg3030.170.201View on iHerb →

How we rank Holy Basil Leaf Extract

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.