10 Best 5-htp Supplements in US 2026

Choosing the best 5-htp supplements starts with understanding the label, the dose, and the supporting ingredients. This guide compares ten standout 5-htp formulas, focusing on specifications like potency, capsule count, and cofactors such as vitamin B6. Each entry is reviewed against the same evidence-based criteria so you can quickly identify which 5-htp option matches your routine.

This is a specification-based comparison, not a hands-on product test. Editorial scores use a published weighted formula: potency and dose flexibility (22.0%), purity and extraction quality (22.0%), delivery form and bioavailability (18.0%), cofactor and synergy ingredients (16.0%), certifications and testing (12.0%), dietary compatibility (10.0%). A limited non-published marketplace adjustment is applied internally after the editorial formula; its underlying values are not reproduced. The combined result determines rank, while the displayed editorial score is calibrated proportionally across the selected products from 9.9 for the highest weighted result to 8.3 for the lowest. Potential limitations are editorial inferences based on documented category-relevant attributes; they are not observations from hands-on testing.

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The Revactic ranking

Top 10 picks

2
NOW Foods 5-HTP 200 mg Double Strength
High-Strength Capsule

NOW Foods 5-HTP 200 mg Double Strength

NOW's Double Strength 5-HTP delivers 200 mg per veggie capsule and adds glycine, taurine, and inositol for documented synergy. The 120-capsule bottle is vegan, kosher, and free from common allergens.

  • 200 mg 5-HTP per veggie capsule, double the standard strength
  • Includes glycine, taurine, and inositol as synergy ingredients
  • Vegan, kosher, Non-GMO, and free from major allergens
9.8
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3
listing value Supplement 5-HTP 200 mg 4-in-1 Formula
Multi-Ingredient Blend

listing value Supplement 5-HTP 200 mg 4-in-1 Formula

listing value Supplement combines 200 mg 5-HTP with 200 mg L-Theanine, 100 mg L-Tryptophan, and 50 mg GABA per serving across 240 capsules. It is positioned for both daytime and nighttime use and is third-party lab tested.

  • 4-in-1 formula with 5-HTP, L-Theanine, L-Tryptophan, and GABA
  • 240 capsules equal 120 servings at two capsules per serving
  • Non-GMO, gluten-free, and free from major allergens
9.6
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4
Thorne 5-HTP 100 mg + Active B6
Practitioner Brand

Thorne 5-HTP 100 mg + Active B6

Thorne combines 100 mg of 5-Hydroxytryptophan with active vitamin B6 in a 90-capsule bottle aimed at sleep, stress, cravings, and mood. It is positioned for users who value practitioner-recommended brands with transparent labeling.

  • 100 mg 5-HTP plus active vitamin B6 in a single capsule
  • Documented support for sleep, stress, cravings, and positive outlook
  • Positioned by a practitioner-recommended supplement brand
9.5
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5
Micro Ingredients 5-HTP 200 mg + GABA + B6 Softgels
Softgel Absorption

Micro Ingredients 5-HTP 200 mg + GABA + B6 Softgels

Micro Ingredients offers a 200 mg 5-HTP softgel complex in a natural hemp seed oil base, combined with vitamin B6, GABA, and L-Theanine. The 240-softgel pouch provides 120 servings and is third-party lab tested in a cGMP facility.

  • Softgel form with natural hemp seed oil base for absorption
  • 200 mg 5-HTP plus vitamin B6, GABA, and L-Theanine
  • 240 softgels providing 120 servings
9.5
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6
Nutricost 5-HTP 200 mg, 120 Capsules
Bulk Vegetarian Value

Nutricost 5-HTP 200 mg, 120 Capsules

Nutricost provides 200 mg of 5-HTP per vegetarian capsule across 120 capsules, third-party tested by ISO-accredited labs and made in a GMP-compliant, FDA-registered facility. The formula is Non-GMO and gluten-free.

  • 200 mg 5-HTP per vegetarian capsule in a 120-capsule bottle
  • Third-party tested by ISO-accredited laboratories
  • Made in an NSF certified, GMP-compliant, FDA-registered facility
9.0
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7
Pure Encapsulations 5-HTP 100 mg
Clinical-Grade Purity

Pure Encapsulations 5-HTP 100 mg

Pure Encapsulations delivers a straightforward 100 mg 5-HTP capsule with a clean formula free from common allergens and artificial additives. It targets serotonin production and sleep regulation in a compact 60-capsule bottle aimed at label-conscious users.

  • 100 mg 5-HTP per capsule from Griffonia simplicifolia seed extract
  • Targets serotonin production, sleep regulation, and appetite cues
  • Free from common allergens, artificial ingredients, and GMOs
9.0
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8
Horbäach 5-HTP 200 mg, 180 Capsules
Mid-Size Capsule Count

Horbäach 5-HTP 200 mg, 180 Capsules

Horbäach delivers 200 mg of 5-HTP per serving from seed extract in 180 quick-release capsules. The formula is laboratory tested and free from gluten, wheat, yeast, milk, lactose, soy, and artificial colors or flavors.

  • 200 mg 5-HTP per serving from seed extract
  • 180 quick-release capsules per bottle
  • Free from gluten, wheat, yeast, milk, lactose, and soy
8.6
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9
Double Wood 5-HTP Liquid Drops 50 mg
Liquid Delivery

Double Wood 5-HTP Liquid Drops 50 mg

Double Wood's 5-HTP liquid drops deliver 50 mg per serving in a 99 percent pure format designed for sublingual absorption. The 2 fl oz bottle contains 60 servings and is manufactured in the USA from globally sourced ingredients.

  • 50 mg 5-HTP per serving in liquid drop form
  • Documented 99 percent 5-HTP purity
  • 60 servings per 2 fl oz bottle, manufactured in the USA
8.6
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10
Natrol 5-HTP 200 mg Time Release
Time-Release Delivery

Natrol 5-HTP 200 mg Time Release

Natrol's 200 mg time-release tablet is designed to release 5-HTP gradually, supporting steady serotonin production. The 60-tablet bottle offers up to a 60-day supply with one daily tablet.

  • 200 mg 5-HTP per time-release tablet
  • Tablet form designed for gradual release across the day
  • Up to a 60-day supply at one tablet daily
8.3
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Buying Guide

Choosing among the best 5-htp supplements comes down to reading the label closely, because every brand takes a different approach to dose strength, supporting ingredients, and capsule format. The products below were selected because each one documents its 5-HTP source, dose, and serving size clearly, allowing a direct specification comparison.

What Is 5-HTP and Why It Matters

5-Hydroxytryptophan, commonly called 5-HTP, is a compound derived from the seeds of the African Griffonia simplicifolia plant. It sits one step before serotonin in the body’s natural pathway, which is why many formulas target mood, sleep, and appetite cues. Understanding this pathway helps explain why some products add vitamin B6, which acts as a documented cofactor in serotonin conversion.

How to Compare 5-HTP Dose Strengths

Dose strength is the most visible specification on any 5-htp supplement label. The products in this guide range from 50 mg per serving up to 200 mg per capsule, and some, like NOW Foods 5-HTP 200 mg Double Strength, pack the full 200 mg into a single capsule. Others, such as Pure Encapsulations 5-HTP 100 mg and Thorne 5-HTP 100 mg + Active B6, use a 100 mg dose that can be easier to layer or split. Matching the dose to your routine is a practical starting point when comparing the top 5-htp supplements.

Purity and Extraction Quality

Purity claims vary widely across the category. Triquetra Organic 5-HTP 200 mg highlights a 99 percent 5-HTP concentration and a water-based extraction method, while Double Wood 5-HTP Liquid Drops also emphasizes a 99 percent pure formulation. Pure Encapsulations 5-HTP 100 mg documents a clean ingredient list free from common allergens and artificial additives. Looking at how a brand sources and tests its Griffonia extract is one of the clearest ways to compare the best 5-htp supplements on quality.

Delivery Form and Bioavailability

Most 5-HTP products come as capsules or tablets, but the format affects how the ingredient is delivered. Micro Ingredients 5-HTP 200 mg + GABA + B6 Softgels uses a softgel format with a hemp seed oil base for absorption, while Natrol 5-HTP 200 mg Time Release offers a time-release tablet designed for gradual release across the day. Double Wood 5-HTP Liquid Drops delivers 5-HTP in liquid form for users who prefer not to swallow capsules. Each format is supported by documented specifications.

Cofactor and Synergy Ingredients

Beyond plain 5-HTP, several products include complementary compounds. NOW Foods 5-HTP 200 mg Double Strength adds glycine, taurine, and inositol, while listing value Supplement 5-HTP 200 mg 4-in-1 Formula combines L-Theanine, L-Tryptophan, and GABA. Thorne 5-HTP 100 mg + Active B6 and Triquetra Organic 5-HTP 200 mg + B6 + Lion’s Mane both include vitamin B6 to support the conversion pathway. These combinations can matter when comparing 5-htp supplements side by side.

Certifications and Testing

Quality documentation is a useful differentiator. Nutricost 5-HTP 200 mg, 120 Capsules is third-party tested by ISO-accredited laboratories and made in an NSF certified, GMP-compliant, FDA-registered facility. Micro Ingredients 5-HTP 200 mg + GABA + B6 Softgels is produced in a cGMP compliant facility and third-party lab tested. NOW Foods 5-HTP 200 mg Double Strength carries NPA A-rated GMP certification. These specifications help compare how rigorously each product is tested.

Dietary Compatibility

Several formulas are designed for restricted diets. NOW Foods 5-HTP 200 mg Double Strength is vegan, kosher, Non-GMO, and free from major allergens. Horbäach 5-HTP 200 mg, 180 Capsules is free from gluten, wheat, yeast, milk, lactose, and soy. Pure Encapsulations 5-HTP 100 mg avoids common allergens and artificial ingredients. Reviewing these certifications makes it easier to narrow the best 5-htp supplements to those that match specific dietary needs.

Final recommendation

Triquetra Organic 5-HTP 200 mg + B6 + Lion’s Mane ranks first overall in this specification-based comparison under the published weighted criteria.

The final choice among the best 5-htp supplements depends on the documented features that match your intended use.

For a specification-based comparison, Pure Encapsulations 5-HTP 100 mg stands out as the first overall choice thanks to its clean formula, allergen-free profile, and clear serotonin and sleep positioning. For buyers prioritizing high-dose 5-HTP, NOW Foods 5-HTP 200 mg Double Strength and Triquetra Organic 5-HTP 200 mg + B6 + Lion’s Mane offer strong alternatives, while listing value Supplement 5-HTP 200 mg 4-in-1 Formula delivers the broadest ingredient profile among the top 5-htp supplements reviewed. Match the dose, format, and supporting ingredients to your routine for the most practical result.

Frequently Asked Questions

What dose of 5-HTP should I look for when comparing the best 5-htp supplements?

Most products in this guide document 50 mg, 100 mg, or 200 mg per serving. Pure Encapsulations 5-HTP 100 mg and Thorne 5-HTP 100 mg + Active B6 sit in the 100 mg range, while NOW Foods 5-HTP 200 mg Double Strength and Triquetra Organic 5-HTP 200 mg + B6 + Lion’s Mane deliver 200 mg per capsule. Matching the dose to your daily plan is the simplest way to narrow the field.

Why do some 5-HTP supplements include vitamin B6?

Vitamin B6 is documented as a cofactor that supports the conversion of 5-HTP to serotonin. Products such as Thorne 5-HTP 100 mg + Active B6, Triquetra Organic 5-HTP 200 mg + B6 + Lion’s Mane, and Micro Ingredients 5-HTP 200 mg + GABA + B6 Softgels include this vitamin in their formulations.

Are there 5-HTP supplements without capsules or tablets?

Yes. Double Wood 5-HTP Liquid Drops 50 mg is a liquid drop format designed for absorption without swallowing capsules. Micro Ingredients 5-HTP 200 mg + GABA + B6 Softgels offers a softgel alternative for users who prefer that format over traditional veggie capsules.

Which 5-HTP products focus on purity or extraction quality?

Triquetra Organic 5-HTP 200 mg highlights a 99 percent concentration with a water-based extraction method, and Pure Encapsulations 5-HTP 100 mg is built around a clean, allergen-free ingredient profile. These specifications make both products relevant when comparing the best 5-htp supplements for purity.

How do time-release 5-HTP tablets differ from standard capsules?

Natrol 5-HTP 200 mg Time Release is documented as a tablet that releases 5-HTP gradually across the day, while most other products in this guide, including NOW Foods 5-HTP 200 mg Double Strength and Nutricost 5-HTP 200 mg, 120 Capsules, use quick-release capsule formats. The choice depends on whether gradual or immediate release suits your routine.