---
product_id: 59366424
title: "Polygala tenuifolia Capsules | 100mg | 90 Count | 20:1 Extract | Yuan Zhi | Promotes Cognitive Function, Learning and Memory | Supports Healthy Stress Levels | Adaptogen Supplement"
brand: "nootropics depot"
price: "KD 11.46"
currency: KWD
in_stock: true
reviews_count: 8
category: "Nootropics Depot"
url: https://www.desertcart.com.kw/products/59366424-polygala-tenuifolia-capsules-100mg-90-count-20-1-extract-yuan
store_origin: KW
region: Kuwait
---

# Adaptogen for stress resilience 100mg potent cognitive boost 20:1 concentrated extract ratio Polygala tenuifolia Capsules | 100mg | 90 Count | 20:1 Extract | Yuan Zhi | Promotes Cognitive Function, Learning and Memory | Supports Healthy Stress Levels | Adaptogen Supplement

**Brand:** nootropics depot
**Price:** KD 11.46
**Availability:** ✅ In Stock

## Summary

> 🧠 Elevate your mind, conquer your day with Yuan Zhi power!

## Quick Answers

- **What is this?** Polygala tenuifolia Capsules | 100mg | 90 Count | 20:1 Extract | Yuan Zhi | Promotes Cognitive Function, Learning and Memory | Supports Healthy Stress Levels | Adaptogen Supplement by nootropics depot
- **How much does it cost?** KD 11.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/59366424-polygala-tenuifolia-capsules-100mg-90-count-20-1-extract-yuan)

## Best For

- nootropics depot enthusiasts

## Why This Product

- Trusted nootropics depot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plant-Based Brain Boost:** 20:1 extract delivers concentrated Yuan Zhi benefits in every capsule
- • **Stress Less, Achieve More:** Natural adaptogen formula supports healthy stress and mood balance
- • **Pure Power, Proven Quality:** In-house lab tested for purity and identity, ensuring premium supplement integrity
- • **Sharper Focus, Smarter Days:** Clinically-backed 100mg Polygala tenuifolia for enhanced memory & learning
- • **Trusted by Experts, Loved by You:** Highly rated by researchers and users for cognitive clarity and mood support

## Overview

Nootropics Depot Polygala tenuifolia Capsules deliver a potent 100mg dose of 20:1 concentrated Yuan Zhi extract, clinically shown to enhance cognitive function, memory, and learning. This vegan, flavorless adaptogen supports healthy stress levels and mood balance, backed by rigorous in-house lab testing for purity. Trusted by professionals and rated 4.3 stars, it’s your go-to natural nootropic for brain clarity and resilience.

## Description

Buy Nootropics Depot Polygala tenuifolia Capsules | 100mg | 90 Count | 20:1 Extract | Yuan Zhi | Promotes Cognitive Function, Learning and Memory | Supports Healthy Stress Levels | Adaptogen Supplement on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Cognitive/memory nootropic, antidepressant - First and foremost, Nootropics Depot is an exemplary brand that utilizes third party testing and produces only the highest quality supplements. I’ve trusted them for years (I am a dietetics researcher, if that lends my opinion any credit). As for the supplement itself, Polygala tenuifolia (sometimes referred to as Yuan Zhi) is one of the most potent ‘nootropic’ supplements I’ve tried. A good amount of scientific evidence supports polygala as an antidepressant, anti-anxiety, and cognition improving plant. Clinical studies show evidence of reuptake inhibition of serotonin, dopamine, and norepinephrine. Polygala has been shown to help mild depression very quickly, as well as chronic stress. Another mechanism of action seems to be related to NMDA antagonism (similar to newly available ketamine therapy). Polygala also shows evidence of increasing BDNF, or brain-derived neurotrophic factor, increasing cognition, memory, and anti-inflammatory neuroprotection. I recommend trying the supplement, it seems to have helped quite a bit with brain fog and chronic anxiety.
Review: Quality product - Mood showed definite signs of improvement. Worth giving a try if you are curious. I’ve bought numerous products from nootropics depot and I can say that the quality is always great

## Features

- Polygala tenuifolia Capsules | 100mg | 90 Count | 20:1 Extract | Also Known As: Yuan Zhi
- Promotes Cognitive Function, Learning and Memory
- Supports Healthy Stress Levels and Positive Mood
- Adaptogen Supplement
- In-House Lab Tested for Purity and Identity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06XGPCPZB |
| Age Range Description | Adult |
| Best Sellers Rank | #79,549 in Health & Household ( See Top 100 in Health & Household ) #3,578 in Blended Vitamin & Mineral Supplements |
| Brand | Nootropics Depot |
| Brand Name | Nootropics Depot |
| Container Type | Jar |
| Customer Reviews | 4.3 out of 5 stars 197 Reviews |
| Diet Type | Vegan |
| Dosage Form | Capsule |
| Flavor | flavorless |
| Is Product Expirable | Yes |
| Item Form | Capsules |
| Item Package Quantity | 1 |
| Item Weight | 0.04 Kilograms |
| Legal Disclaimer | Keep out of reach of children. Do not take this or any other supplement if under the age of 18, pregnant or nursing a baby, or if you have any known or suspected medical conditions, and/or taking prescription drug(s) or OTC medication(s). |
| Manufacturer | Nootropics Depot |
| Number of Items | 1 |
| Package Information | Jar |
| Package Quantity | 1 |
| Total Servings Per Container | 90 |
| Unit Count | 90.00 Count |

## Product Details

- **Brand:** Nootropics Depot
- **Item Form:** Capsules
- **Item Package Quantity:** 1
- **Manufacturer:** Nootropics Depot
- **Package Information:** Jar

## Images

![Polygala tenuifolia Capsules | 100mg | 90 Count | 20:1 Extract | Yuan Zhi | Promotes Cognitive Function, Learning and Memory | Supports Healthy Stress Levels | Adaptogen Supplement - Image 1](https://m.media-amazon.com/images/I/61sTxJEEnTL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: If each pill is a 100mg and contains a 20:1 extract, does that mean each pill is equivalent to 2g of Polygala root?**
A: Correct

**Q: Can you feel a difference within several hours of taking it?**
A: It's not a noticeable difference but definitely
feel like it's working. It's almost as if it just makes your day 5-10% better. No, it's not like taking a klonopin. The half life is relatively shorts so you're supposed to take it 3 times a day if that's what you need. I've only been taking it once as needed if I'm stressed because it's supposed to ASSIST you with stress. Remember to avoid dependency of needing it to cope.

**Q: This product uses corn Ethanol (an oxidizer) as an extractor and two fillers. Of the 180 caps,18 grams, 2/3rds are fillers. Is this worth it??**
A: Yes. Nootropics Depot is very reputable, and uses scientifically-backed extraction methods (alcohol in this case), formulas, and is third-party verified. They have quite the following on Reddit. I trust them above most supplement companies. I found this supplement very effective for brain fog, stress, and general mood boosting effects.

**Q: Size of pill compared to a dime?**
A: It's about the length of a dime. A little larger than a vitamin D pill.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Cognitive/memory nootropic, antidepressant
*by J***0 on March 13, 2020*

First and foremost, Nootropics Depot is an exemplary brand that utilizes third party testing and produces only the highest quality supplements. I’ve trusted them for years (I am a dietetics researcher, if that lends my opinion any credit). As for the supplement itself, Polygala tenuifolia (sometimes referred to as Yuan Zhi) is one of the most potent ‘nootropic’ supplements I’ve tried. A good amount of scientific evidence supports polygala as an antidepressant, anti-anxiety, and cognition improving plant. Clinical studies show evidence of reuptake inhibition of serotonin, dopamine, and norepinephrine. Polygala has been shown to help mild depression very quickly, as well as chronic stress. Another mechanism of action seems to be related to NMDA antagonism (similar to newly available ketamine therapy). Polygala also shows evidence of increasing BDNF, or brain-derived neurotrophic factor, increasing cognition, memory, and anti-inflammatory neuroprotection. I recommend trying the supplement, it seems to have helped quite a bit with brain fog and chronic anxiety.

### ⭐⭐⭐⭐⭐ Quality product
*by A***H on June 29, 2025*

Mood showed definite signs of improvement. Worth giving a try if you are curious. I’ve bought numerous products from nootropics depot and I can say that the quality is always great

### ⭐⭐⭐⭐⭐ Good formulation and not easy to find
*by T***I on February 13, 2026*

I think it helped my sleep.. let's see. I do have a pretty serious sleep problem, likely coupled with anxiety

## Frequently Bought Together

- Nootropics Depot Polygala tenuifolia Capsules | 100mg | 90 Count | 20:1 Extract | Yuan Zhi | Promotes Cognitive Function, Learning and Memory | Supports Healthy Stress Levels | Adaptogen Supplement
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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-04*