amino acid

5-HTP supplements

Half of the 676 5-HTP supplements in the NIH label database that print an amount list 100 mg or less per serving; the middle half list 50 mg to 100 mg (DSLD version 9.4.0, January 2026). The 156 products whose only supplement ingredient is 5-HTP list a median of 100 mg.

How much 5-HTP do supplements contain?

The median product lists 100 mg per serving. One in ten lists 25 mg or less, one in ten 200 mg or more. The amount printed most often is 100 mg (222 products).

Which products list the most 5-HTP?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• 5-HtpThrive Naturals600 mg
• Sleep AidHTLT Essentials600 mg
• SeratoninNutriCology400 mg
• SwaggerForce Factor400 mg
• SeratoninAllergy Research Group400 mg
• MasterMindAdvanced Nutrition by Zahler400 mg
• 5-HTP Capsules 400mgBulkSupplements.com400 mg
• MorphoremMN Morphogen Nutrition300 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2012 list a median of 45 mg; those entered in 2025, 75 mg.

In which products and brands?

Brands listing it most: Natrol (31), Pure Encapsulations (11), NOW (10), Allergy Research Group (9), Higher Nature (8), Designs for Health (8), Natural Factors Stress-Relax (7), Xtendlife (7), Doctor's Best (7), XYMOGEN (6).

Every product listing 5-HTP

903 products, A to Z by name (page 5 of 19), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• 5-HTP L-5-Hydroxytryptophan 100 mgPhysioLogics · off the market100 mg
• 5-HTP L-5-Hydroxytryptophan 100 mgGood 'N Natural · off the market100 mg
• 5-HTP L-TheanineAgeImmune100 mg
• 5-HTP Lozenge 50 mgSeeking Health50 mg
• 5-HTP MaxAdaptogen Research100 mg
• 5-HTP Mood & Relaxation 100 mgNatrol100 mg
• 5-HTP Natural Griffonia Seed ExtractWonder Laboratories50 mg
• 5-HTP PlusOL Olympian Labs100 mg
• 5-HTP PlusNatrol100 mg
• 5-HTP PlusBELDT Labs Bedrock Series100 mg
• 5-HTP Plus 200 mgDr. Emil Nutrition200 mg
• 5-HTP Plus FormulaDouglas Laboratories75 mg
• 5-HTP Plus+ 200 mgNatureWise200 mg
• 5-HTP PowderChief Originals200 mg
• 5-HTP Powder 200 mgBulkSupplements.com200 mg
• 5-HTP PowerNature's Sunshine35 mg
• 5-HTP Pure 100 mgPure Naturals200 mg
• 5-HTP SAP 100 mgNFH100 mg
• 5-HTP SAP 50 mgNFH50 mg
• 5-HTP SelectMoss Nutrition50 mg
• 5-HTP Serenity 100 mgForestLeaf100 mg
• 5-HTP Serenity 200 mgForestLeaf200 mg
• 5-HTP SupremeDesigns for Health100 mg
• 5-HTP SynergyDesigns for Health50 mg
• 5-HTP Time Release 100 mgNatrol · off the market100 mg
• 5-HTP Time Release 100 mgBIOVEA100 mg
• 5-HTP Time Release 200 mgNatrol · off the market200 mg
• 5-HTP TR Time Release 100 mgNatrol · off the market100 mg
• 5-HTP w/SRTJigsaw Health100 mg
• 5-HTP with CalciumHerbTonics200 mg
• 5-HTP with Vitamin B6 & Vitamin CLake Avenue Nutrition100 mg
• 5-HTP with Vitamin B6 100 mgThe Vitamin Shoppe100 mg
• 5-HTP With Vitamin B6 50 mgThe Vitamin Shoppe50 mg
• 5-HTP WORxSuperiorLabs150 mg
• 5-HTP+Complex with Ashwagandha & L-TaurinePurely Optimal250 mg
• 5-Hydroxy GabaPriority One Nutritional Supplements15 mg
• 5-Hydroxy L-TryptophanProgressive Professional from Progressive Laboratories100 mg
• 5-Hydroxy-TryptophanThorne Research · off the market100 mg
• 5-HydroxytryptophanThorne100 mg
• 5HTP 100 mgGenestra Brands100 mg
• 5HTP 100 mgVital Nutrients100 mg
• 5HTP 50 mgVital Nutrients100 mg
• 5HTP+ 200 mgNumber One Nutrition200 mg
• 7-Keto TrimCountry Life · off the marketin a blend
• 8 Hour Snooze8 Hour Snooze · off the marketin a blend
• 8Hr Sleep with Melatonin8 Hour Sleepin a blend
• Abomination Candy AppleRising Labs · off the market75 mg
• Accelerator+Plexusin a blend
• Acid Reflux SupportApproved Science100 mg
• Adrena-MaxxPurely Beneficial25 mg

Where next?

• Check an amount of 5-HTP
• Labels above the upper limit
• All ingredients