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Product Review

NOW Foods 5-HTP 100mg

NOW Foods · Capsule · 100 mg

Price/day

€0.20

Dose

100 mg

Servings/pack

120

Pack price

€24.00

Transparency Index

7.7/10

Recommended Affordable, but use only with professional guidance due to serotonin interactions.

Rating breakdown

Evidence for ingredient 6.0/10

5-HTP shows effects on mood and sleep, but caution is needed with certain medications.

Value for money 9.0/10

€0.20 per serving is very affordable.

Product quality 8.0/10

Raw material is tested for Peak X impurity.

Label honesty 8.0/10

Griffonia source clearly stated.

Third-party testing 7.0/10

NOW tests for Peak X and alkaloids; no external certification seals.

Product Description

NOW sources Griffonia simplicifolia from Ghana and extracts 5-HTP standardized to 99% purity. Capsules contain rice flour as a stabilizer.

What We Like

  • High purity
  • Large 120-capsule bottle
  • Vegan

What We’re Missing

  • Not suitable with SSRIs or MAO inhibitors
  • Can cause nausea in sensitive individuals

Usage Recommendation

1 capsule in the evening or between meals. Always maintain a 2-hour gap from protein foods and medications.

Other 5-HTP (5-Hydroxytryptophan) products

Ingredient dossier

5-HTP is a serotonin precursor crossing the blood-brain barrier. Used for sleep and mood. Critical: avoid with SSRIs or MAO inhibitors due to serotonin syndrome risk.

Read full dossier: 5-HTP (5-Hydroxytryptophan) →