--- product_id: 601897538 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 14.89" currency: KWD in_stock: true reviews_count: 5 category: "Nootropics Depot" url: https://www.desertcart.com.kw/products/601897538-polygala-tenuifolia-capsules-100mg-90-count-20-1-extract-yuan store_origin: KW region: Kuwait --- # 100mg potent cognitive boost In-house lab tested purity 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 14.89 **Availability:** ✅ In Stock ## Summary > 🧠 Elevate your mind, conquer your day — don’t let cognitive edge slip away! ## 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 14.89 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/601897538-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 - • **Pure Power You Can Trust:** Rigorous in-house lab testing guarantees purity and identity for consistent quality. - • **Stress Less, Achieve More:** Adaptogenic properties help maintain healthy stress levels and promote a positive mood. - • **Sharper Focus, Smarter Days:** 100mg of premium Polygala tenuifolia extract fuels your brain’s learning and memory circuits. - • **90 Capsules of Daily Brain Fuel:** A convenient 90-count supply designed to seamlessly fit your busy professional lifestyle. - • **Ancient Wisdom Meets Modern Science:** 20:1 extract ratio delivers a potent dose of Yuan Zhi, a time-tested cognitive enhancer. ## Overview Nootropics Depot Polygala tenuifolia Capsules provide a potent 100mg dose of 20:1 Yuan Zhi extract, clinically tested for purity. Designed to support cognitive function, learning, memory, and healthy stress levels, this adaptogen supplement offers a natural, science-backed way to enhance mental clarity and mood. Packaged in a convenient 90-count capsule format, it’s tailored for professionals seeking a reliable brain boost. ## Description Product includes one jar of Polygala tenuifolia 20:1 Extract 100mg Capsules. This product is not intended to diagnose, treat, cure, or prevent any disease. It has not been approved, nor have these statements been evaluated, by the FDA. Review: I think it helped my sleep.. let's see. I do have a pretty serious sleep problem, likely coupled with anxiety Review: 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 | | ASIN | B06XGPCPZB | | Age Range Description | Adults | | Best Sellers Rank | #64,439 in Health ( See Top 100 in Health ) #1,957 in Multiple Vitamin-Mineral Combination Supplements | | Brand Name | Nootropics Depot | | Container Type | Jar | | Customer Reviews | 4.2 4.2 out of 5 stars (165) | | Customer reviews | 4.2 4.2 out of 5 stars (165) | | Diet Type | Vegan | | Dosage Form | Capsule | | Flavor | Unflavoured | | Is Discontinued By Manufacturer | No | | Item Form | Capsule | | Item Weight | 0.04 Kilograms | | Item model number | ND1153A | | 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 | | Manufacturer | Nootropics Depot | | Manufacturer Part Number | ND1153A | | Model Number | ND1153A | | Number of Items | 1 | | Package Quantity | 1 | | Product Dimensions | 7.62 x 10.16 x 7.62 cm; 36 g | | Total Servings Per Container | 90 | ## Product Details - **Brand:** Nootropics Depot - **Item form:** Capsule - **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 ### ⭐⭐⭐⭐⭐ Review *by T***I on 13 February 2026* I think it helped my sleep.. let's see. I do have a pretty serious sleep problem, likely coupled with anxiety ### ⭐⭐⭐⭐⭐ Review *by J***0 on 13 March 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. ### ⭐⭐⭐⭐ Review *by E***D on 5 March 2026* very good for you ## 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 - Nootropics Depot 4'-DMA-7,8-DHF Nutritional Supplement Capsules | 10mg | 30 Count | 4'-DMA-7,8-Dihydroxyflavone - Nootropics Depot Sabroxy® Tablets | 100mg | 90 Count | Minimum 10% Oroxylin-A | Oroxylum indicum | May Help Promote Focus & Motivation | May Help Promote Cognitive Function --- ## 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.com.kw/products/601897538-polygala-tenuifolia-capsules-100mg-90-count-20-1-extract-yuan](https://www.desertcart.com.kw/products/601897538-polygala-tenuifolia-capsules-100mg-90-count-20-1-extract-yuan) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-13*