Sunday Natural Ashwagandha KSM-66 600

Sunday Natural · Capsule · 600 mg

Price/day

€0.25

Dose

600 mg

Servings/pack

Pack price

€22.90

Transparency Index

8.7/10

Recommended KSM-66 quality at best price. One of the cheapest options for the branded ashwagandha extract.

Rating breakdown

Evidence for ingredient 8.0/10

Ashwagandha (KSM-66) has good RCT evidence for stress reduction, cortisol, and sleep quality.

Value for money 9.0/10

€0.25 per 600 mg KSM-66 is excellent — the branded extract usually costs €0.40–0.60.

Product quality 9.0/10

KSM-66 is the most studied ashwagandha extract, standardized to 5% withanolides.

Label honesty 9.0/10

KSM-66 license, withanolide content, and extraction method transparently specified.

Third-party testing 8.0/10

KSM-66 certificate plus German laboratory analysis of every batch.

Product Description

Sunday Natural uses the patented KSM-66 ashwagandha root extract — the world’s most studied ashwagandha extract with over 20 clinical studies. Standardized to at least 5% withanolides via milk extraction (no chemical solvents).

What We Like

KSM-66 — the gold standard among ashwagandha extracts
600 mg per capsule corresponds to the most frequently used dose in studies
90 capsules = 3 months duration
Vegan cellulose capsules without additives

What We’re Missing

EFSA has not approved health claims for ashwagandha
Can affect thyroid hormones — caution with Hashimoto’s
Not suitable for pregnant women

Other Ashwagandha (Withania somnifera) products

Life Extension Ashwagandha KSM-66

8.4/10

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Jarrow Ashwagandha KSM-66 300mg

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iXora KSM-66 Ashwagandha

7.8/10

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Nutricost KSM-66 Ashwagandha 600 mg

7.5/10

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Jarrow Ashwagandha KSM-66

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Recommended

Ingredient dossier

Ashwagandha is an Ayurvedic adaptogen backed by multiple RCTs for stress and cortisol reduction. Sleep and testosterone effects are promising but come from small studies.

Read full dossier: Ashwagandha (Withania somnifera) →