Doctor's Best 5-HTP, Enhanced with Vitamins B6 & C, 120 Veggie Caps supplement bottle
Doctor's Best

5-HTP, Enhanced with Vitamins B6 & C, 120 Veggie Caps

What We Researched
3 active ingredients analyzed · 3 inactive ingredients decoded · 1 brand certification checked · 4 retailers compared · Last updated: Mar 2026
83
Product Score Good
61
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as Ascorbic Acid) 200 mg 220%
Vitamin B6 (as Pyridoxine Hydrochloride) 15 mg 880%
5-HTP (5-hydroxy L-tryptophan)(from Griffonia simplicifolia extract) (seed) 100 mg
Bioavailability Good

Absorption Rating

  • Vitamin C (as Ascorbic Acid) Fair
  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • 5-HTP (5-hydroxy L-tryptophan)(from Griffonia simplicifolia extract) (seed) Good
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Modified Cellulose (Vegetarian Capsule)
  • Silicon Dioxide
Efficacy Good

Dosage Analysis

  • Vitamin C (as Ascorbic Acid) 200 mg Effective
  • Vitamin B6 (as Pyridoxine Hydrochloride) 15 mg Effective
  • 5-HTP (5-hydroxy L-tryptophan)(from Griffonia simplicifolia extract) (seed) 100 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as Ascorbic Acid) 200 mg 220%
Vitamin B6 (as Pyridoxine Hydrochloride) 15 mg 880%
5-HTP (5-hydroxy L-tryptophan)(from Griffonia simplicifolia extract) (seed) 100 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Modified Cellulose (Vegetarian Capsule) Safe

It is used as a vegetarian capsule shell material.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$19$17$16$14$13 Mar 12 $16.99$15.00
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Doctor's Best

Founded 1990 · Tustin, California, USA · 186 products · doctorsbest.com

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source

Violation History

1 incident
Recall Red Yeast Rice2014-06-26Source
Related Supplements
Frequently Asked Questions
Is Doctor's Best 5-HTP, Enhanced with Vitamins B6 & C a good supplement?

Doctor's Best 5-HTP, Enhanced with Vitamins B6 & C, 120 Veggie Caps received a product quality score of 83/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 3 active ingredients with 120 servings per container. All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Doctor's Best, holds a brand trust score of 61/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Doctor's Best 5-HTP, Enhanced with Vitamins B6 & C?

Doctor's Best 5-HTP, Enhanced with Vitamins B6 & C contains 3 active ingredients: Vitamin C (as Ascorbic Acid) (200 mg), Vitamin B6 (as Pyridoxine Hydrochloride) (15 mg), 5-HTP (5-hydroxy L-tryptophan)(from Griffonia simplicifolia extract) (seed) (100 mg). Notable high-dose ingredients include Vitamin C at 220% DV, Vitamin B6 at 880% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Doctor's Best 5-HTP, Enhanced with Vitamins B6 & C safe to take?

Doctor's Best 5-HTP, Enhanced with Vitamins B6 & C, 120 Veggie Caps has been analyzed for ingredient safety across all its components. All 3 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Doctor's Best a trustworthy supplement brand?

Doctor's Best receives a brand trust score of 61/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1990 and headquartered in Tustin, California, USA, the company offers 186 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Doctor's Best has 1 historical regulatory incident on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.