---
product_id: 125176022
title: "L-Serine Capsules (Third Party Tested) - 2,000mg Servings Used in Clinical Study, 180 Count, 500mg per Capsule (L Serine Amino Acid for Serotonin Production and Brain Support) by Double Wood"
brand: "double wood supplements"
price: "S$42"
currency: SGD
in_stock: true
reviews_count: 8
category: "Double Wood Supplements"
url: https://www.desertcart.sg/products/125176022-l-serine-capsules-third-party-tested-2-000mg-servings-used
store_origin: SG
region: Singapore
---

# Vegetarian, Non-GMO, Gluten-free Third-party tested purity 2000mg clinical dose L-Serine Capsules (Third Party Tested) - 2,000mg Servings Used in Clinical Study, 180 Count, 500mg per Capsule (L Serine Amino Acid for Serotonin Production and Brain Support) by Double Wood

**Brand:** double wood supplements
**Price:** S$42
**Availability:** ✅ In Stock

## Summary

> 🧠 Elevate your brain game with clinically-backed L-Serine power!

## Quick Answers

- **What is this?** L-Serine Capsules (Third Party Tested) - 2,000mg Servings Used in Clinical Study, 180 Count, 500mg per Capsule (L Serine Amino Acid for Serotonin Production and Brain Support) by Double Wood by double wood supplements
- **How much does it cost?** S$42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/125176022-l-serine-capsules-third-party-tested-2-000mg-servings-used)

## Best For

- double wood supplements enthusiasts

## Why This Product

- Trusted double wood supplements brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean & Conscious Formula:** Vegetarian, Non-GMO, and gluten-free capsules crafted from globally sourced ingredients.
- • **Third-Party Tested for Purity:** Rigorous testing ensures zero heavy metals and microbial contaminants for your safety.
- • **45-Day Supply of Brain Wellness:** 180 capsules delivering consistent, high-quality support to keep your mind sharp and energized.
- • **Clinically Proven 2,000mg Serving:** Potent dose used in recent brain health studies for maximum cognitive support.
- • **Supports Serotonin & Cognitive Function:** Boosts serotonin production and nerve health to enhance memory, focus, and mood.

## Overview

Double Wood’s L-Serine Capsules deliver a potent 2,000mg clinical dose per serving, supporting serotonin production and cognitive function. Manufactured and third-party tested in the USA, these vegetarian, Non-GMO, and gluten-free capsules ensure purity and quality. With 180 capsules per bottle, enjoy a 45-day supply designed to enhance memory, focus, and overall brain health.

## Description

Buy L-Serine Capsules (Third Party Tested) - 2,000mg Servings Used in Clinical Study, 180 Count, 500mg per Capsule (L Serine Amino Acid for Serotonin Production and Brain Support) by Double Wood on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: It works for the memory! - L-Serine does work at 4/night. The only reason for the 4's are due to ... it does take a couple of weeks to feel a difference; they do make you want to use the bathroom quite a bit until your body gets used to them; and they are on the expensive side due to needing to use them continuously. When using, they make you feel if you are picking up information in a file cabinet you haven't used in a very long time. It gives you a the benefit of remember things that you forgot you had remembered.... it helps with focus to finish tasks that you could not complete before; you feel years younger in the brain instead of feeling 'aged'. I did take it right before going to bed but stopped taking that close because it gave too much energy and could not sleep; but when I took from 2-3 hours before bed, I started to get somewhat sleepy, but not enough to stop doing what I needed to do. By the time I went to bed I was very sleepy and was ready for the Z's and could sleep a good 5-6 hours before a bathroom break. This is good when you could only sleep 2 hours before there was a disruption in your sleep. Love L-Serine and I know over time it will get better and will get more hours of sleep as it covers all of my serine needs.
Review: No fillers - Great quality! No fillers.

## Features

- SUPPORT SEROTONIN LEVELS: L-Serine is an essentially amino acid that is vital to the production of both Tryptophan and Serotonin
- SUPPORT COGNITIVE FUNCTION: L-Serine is vital to the health of brain proteins and nerve coverings which may help support overall cognitive function
- 2,000 MG SERVING SIZE: Double Wood provides 180 capsules (45 days of the 2,000mg serving size used in the recent studies showing L-Serine may support brain health and cognitive function
- ROOTED IN QUALITY: Manufactured and Tested in the USA from Globally Sourced Ingredients. Double Wood's L-Serine capsules are manufactured and tested for microbes and heavy metals right here in the USA from Globally Sourced Ingredients. Plus, they are vegetarian,Non-GMO and gluten-free
- WE BOTTLE WELLNESS: At Double Wood we provide pure, potent supplements that deliver exceptional value, all backed by careful sourcing and rigorous third-party testing.Common spellings include (L-Serine, L Serine, LSerine)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B07RDYCG4H |
| Best Sellers Rank | #15,110 in Health & Household ( See Top 100 in Health & Household ) #392 in Blended Vitamin & Mineral Supplements |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,496) |
| Date First Available  | May 2, 2019 |
| Manufacturer  | Double Wood Supplements |
| Package Dimensions  | 4.8 x 2.52 x 2.48 inches; 5.1 ounces |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Double Wood Supplements
- **Diet Type:** Gluten Free, Vegan
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 5.1 Ounces
- **Primary Supplement Type:** l-Serine
- **Product Benefits:** Brain Health Support
- **Special Ingredients:** Dicalcium Phosphate
- **Unit Count:** 180 Count

## Images

![L-Serine Capsules (Third Party Tested) - 2,000mg Servings Used in Clinical Study, 180 Count, 500mg per Capsule (L Serine Amino Acid for Serotonin Production and Brain Support) by Double Wood - Image 1](https://m.media-amazon.com/images/I/81CaN0DGNmL.jpg)

## Questions & Answers

**Q: what is this item tested for? heavy metals? what type of impurities?**
A: Hello,

We test for many different heavy metals and potentially dangerous microbes as set fourth by FDA regulations.

Hope this helps!
-Caroline
Double Wood Supplements

**Q: What is the difference between l-serine and the phosphatidyl serine,  or benefits?**
A: The question is highly technical and should be answered by the manufacture's technical staff or a certified organic chemist.

**Q: What agency is the third-party tester?**
A: Hello,

We are currently using Colmaric Analyticals for third party testing.

Best Regards,
-Reese
Double Wood Supplements

**Q: Are the typical purity levels cited ?  Thanks.**
A: I see nothing on the web site guaranteeing purity. It only states that they have "third-party testing". That doesn't mean anything.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works for the memory!
*by B***L on May 27, 2020*

L-Serine does work at 4/night. The only reason for the 4's are due to ... it does take a couple of weeks to feel a difference; they do make you want to use the bathroom quite a bit until your body gets used to them; and they are on the expensive side due to needing to use them continuously. When using, they make you feel if you are picking up information in a file cabinet you haven't used in a very long time. It gives you a the benefit of remember things that you forgot you had remembered.... it helps with focus to finish tasks that you could not complete before; you feel years younger in the brain instead of feeling 'aged'. I did take it right before going to bed but stopped taking that close because it gave too much energy and could not sleep; but when I took from 2-3 hours before bed, I started to get somewhat sleepy, but not enough to stop doing what I needed to do. By the time I went to bed I was very sleepy and was ready for the Z's and could sleep a good 5-6 hours before a bathroom break. This is good when you could only sleep 2 hours before there was a disruption in your sleep. Love L-Serine and I know over time it will get better and will get more hours of sleep as it covers all of my serine needs.

### ⭐⭐⭐⭐⭐ No fillers
*by S***. on December 29, 2025*

Great quality! No fillers.

### ⭐⭐⭐⭐⭐ WOW! Searching for 2 Years, Finally Found Something that Works!
*by B***R on June 3, 2019*

I am a 68 Year old woman, and I take a lot of supplements, some of them because I can actually feel the results (like magnesium for leg cramps or melatonin to help me sleep, etc., probiotics and krill for intestinal health), others because I am deficient (Vitamin D for one), and others because I have researched them and although you can't necessarily tell immediately, they have excellent effects (antioxidants keeping me well or helping me fight something coming on, others helping my digestion, or heart or brain health, etc.), and quite a few other supplements, like several for my arthritis and general inflammation. Nevertheless, for the past 2 years I have been waking up tired. I used to wake up energetic (despite being low thyroid, which is the only thing I take prescription medication for - T3 and T4) and ready to start the day. Not tired. So I have been searching for something to help change that. And of course, I was having what I assumed were typical memory issues that older people suffer with, like not being able to find the exact word I wanted, or the name of an actor I could picture, and so on. Doctors have been useless, and blood tests have not been helpful either. They say idiotic things like, well, now you are getting older . . . . So when I heard about L-Serine, I thought, well, I already take phosphatidylserine and pregnenolone, so I will research L-Serine. I checked out the research on the National Institute of Health, and liked the idea of a neuroprotector, and especially appealing was that they found it helps with sleep. I have an overactive bladder, and it's not terrible in the daytime, but at night I wake up about every 2 hours although I am usually able to get right back to sleep. But I have of late also been sleeping 9-10 hours. My Fitbit says less, I suppose because it is counting the time I am up. Still, it's a lot of lost time, at least to me. After taking two capsules twice daily for less than a week, I was AMAZED at my results! Suddenly, I could wake up after 7 or 7-1/2 hours WIDE AWAKE, no longer tired, thinking about going back to sleep and begrudgingly staying up after nine or ten hours in (and out of) bed. I am absolutely ecstatic. It has been 2 weeks now, and I am still thrilled, and expect to continue taking this supplement. THANK YOU DOUBLE WOOD!! I am a purchaser of this product, did not receive it free. And this is a legitimate review from a customer unaffiliated with the company.

## Frequently Bought Together

- L-Serine Capsules (Third Party Tested) - 2,000mg Servings Used in Clinical Study, 180 Count, 500mg per Capsule (L Serine Amino Acid for Serotonin Production and Brain Support) by Double Wood
- Magnesium L Threonate, Magtein™, Sleep and Cognitive Support – High Absorption – Most Bioavailable Form of Magnesium – 2,000 mg – 120 Capsules
- PhosphatidylSerine Supplement 300mg Per Serving, 120 Capsules (Phosphatidyl Serine Complex) by Double Wood

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sg/products/125176022-l-serine-capsules-third-party-tested-2-000mg-servings-used](https://www.desertcart.sg/products/125176022-l-serine-capsules-third-party-tested-2-000mg-servings-used)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-12*