Happy Herb Co | Herbs for Health & Wellness

L-Tryptophan - Amino Acid Powder

L-Tryptophan - Amino Acid Powder - Main image
$30.36 $46 In stock

Category: Supplement

Nourishing Support for Mood, Sleep & Wellbeing

L-Tryptophan is an essential amino acid that serves as a precursor to serotonin and melatonin, two important compounds involved in regulating mood, sleep, and overall wellbeing. Because the body cannot produce L-Tryptophan on its own, it must be obtained through diet or supplementation.

This amino acid is commonly used to support relaxation, emotional balance, and healthy sleep patterns, making it a popular choice during times of stress, busy lifestyles, or when seeking additional support for rest and recovery.

Serving guide: 95mg per day. A metal microspoon is included in the bottle — please follow the instructions on the label.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.6 / 5 · 5 reviews)

Abigail ★★★★★

The powder dissolves cleanly in warm water with barely any grit, which makes it easy to stick with nightly. I've noticed a real difference in how settled my mind feels before bed, and waking up is less of a struggle now.

Riley L. ★★★★★

The powder dissolves cleanly in my evening tea with no chalky aftertaste, and I’ve noticed a calmer drift into sleep within about 30 minutes. It’s become the steady anchor my mood needed after stressful days.

Harper B. ★★★★★

I’ve been taking this powder about an hour before bed, and I’m waking up feeling noticeably more rested. It mixes clear in cold water with just a little stir, which makes the routine easy to stick with. The subtle shift in my evening mood has been a welcome surprise too.