---
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: "221 Lei"
currency: RON
in_stock: true
reviews_count: 8
category: "Nootropics Depot"
url: https://www.desertcart.ro/products/59366424-polygala-tenuifolia-capsules-100mg-90-count-20-1-extract-yuan
store_origin: RO
region: Romania
---

# Adaptogen for stress & mood support 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:** 221 Lei
**Availability:** ✅ In Stock

## Summary

> 🧠 Elevate your mind, conquer your day — the smart supplement for the driven professional.

## 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?** 221 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/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

- • **Lab-Tested for Trust:** In-house purity and identity testing guarantees premium quality you can rely on.
- • **Join the Cognitive Elite:** Trusted by researchers and professionals for brain fog relief and mood enhancement.
- • **Stress Less, Achieve More:** Natural adaptogen properties support healthy stress levels and positive mood balance.
- • **Pure Power in Every Capsule:** 20:1 extract concentration ensures maximum bioavailability and efficacy.
- • **Sharper Focus, Smarter Days:** Clinically-backed 100mg Polygala tenuifolia to enhance memory and learning.

## Overview

Nootropics Depot Polygala tenuifolia Capsules deliver a potent 100mg dose of a 20:1 concentrated Yuan Zhi extract, clinically shown to promote cognitive function, memory, and learning. This adaptogen supplement supports healthy stress levels and mood balance, backed by in-house lab testing for purity and identity. Ideal for professionals seeking natural brain enhancement and resilience against daily mental fatigue.

## 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: 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
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.

## 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 |
| Best Sellers Rank | #100,186 in Health & Household ( See Top 100 in Health & Household ) #4,636 in Blended Vitamin & Mineral Supplements |
| Customer Reviews | 4.3 4.3 out of 5 stars (193) |
| Date First Available  | March 7, 2017 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | ND1153A |
| Manufacturer  | Nootropics Depot |
| Product Dimensions  | 3 x 4 x 3 inches; 1.27 ounces |

## 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)

## 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

### ⭐⭐⭐⭐⭐ 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐ Wanted to find a replacement for ADHD meds
*by H***T on February 24, 2024*

I wanted to try this supplement in an attempt to replace my ADHD meds. Initially I felt no difference day to day. However, after taking this consistently, I've noticed that I wasn't getting frustrated or overwhelmed as easily at work. I really loved this supplement, but I had to stop taking it because it gave me chest tightness and pain. I experimented and took a break from polygala, after including it again in my daily stack the chest pain returned. Really sad that this didn't work out for me.

## 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 Romania*
*Store origin: RO*
*Last updated: 2026-02-09*