--- product_id: 395679806 title: "Cannabinology Feminized Seed Spray | 8 oz/240 ml Bottle | Breed 100% Female Seeds (Feminized Seeds) | Silver Thiosulfate Spray Kit | STS Spray Kit | Reversal Spray (8 oz - with Spray Bottle)" brand: "cannabinology" price: "₩106098" currency: KRW in_stock: true category: "Cannabinology" url: https://www.desertcart.kr/products/395679806-cannabinology-feminized-seed-spray-8-oz-240-ml-bottle-breed store_origin: KR region: South Korea --- # Repeat application every 5 days for 20-30 days 8 oz / 240 ml precise volume Proprietary Silver Thiosulfate formula Cannabinology Feminized Seed Spray | 8 oz/240 ml Bottle | Breed 100% Female Seeds (Feminized Seeds) | Silver Thiosulfate Spray Kit | STS Spray Kit | Reversal Spray (8 oz - with Spray Bottle) **Brand:** cannabinology **Price:** ₩106098 **Availability:** ✅ In Stock ## Summary > 🌱 Unlock the future of breeding with every spray — don’t get left behind! ## Quick Answers - **What is this?** Cannabinology Feminized Seed Spray | 8 oz/240 ml Bottle | Breed 100% Female Seeds (Feminized Seeds) | Silver Thiosulfate Spray Kit | STS Spray Kit | Reversal Spray (8 oz - with Spray Bottle) by cannabinology - **How much does it cost?** ₩106098 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/395679806-cannabinology-feminized-seed-spray-8-oz-240-ml-bottle-breed) ## Best For - cannabinology enthusiasts ## Why This Product - Trusted cannabinology brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Seed Reversal:** Simplify your breeding process with an easy-to-use spray kit designed for both beginners and pros. - • **Maximize Genetic Potential:** Save your favorite phenotypes and unlock rare traits with precision pollen reversal. - • **Guaranteed 100% Female Seeds:** Harness the power of STS to produce exclusively feminized seeds with unmatched accuracy. - • **Scientifically Proven & Safe:** Non-toxic, non-allergenic formula trusted by breeders worldwide for consistent results. - • **Complete Kit for Immediate Use:** Includes everything needed—just add water and soap to start your breeding journey today. ## Overview The Cannabinology Feminized Seed Spray Kit is a scientifically formulated 8 oz (240 ml) Silver Thiosulfate (STS) solution designed to reverse female plants and produce 100% feminized seeds. Trusted by breeders globally, this safe and easy-to-use kit requires repeat application every 5 days over 20-30 days, enabling precise control over seed production and genetic preservation. ## Description Cannabinology Feminized Seed Spray is an easy to use Silver Thiosulfate Spray Kit to make feminized seeds. This 8 oz / 240 ml STS based Feminized Seed Spray Kit contains enough Silver Thiosulfate (STS) to make 8 oz or about 250 milliliters of STS spray. Enough STS spray to sex reverse many small or medium plant or 1 large plant and perfect to make many thousands of feminized seeds! ## Features - EASILY MAKE 100% FEMALE SEEDS: The Cannabinology STS Spray Kit is easier to use and more effective than Colloidal silver and other reversal methods. This kit contains everything you need to sex reverse female plants and produce feminized seeds at home or in a commercial setting. This proprietary Silver Thiosulfate formula is proven to provide ease of use, accuracy, and repeatability to breeders across the country and around the world. Start your breeding journey today! - SAFE & SCIENTIFIC: Cannabinology STS Spray is safe, non-toxic, and non-allergenic. However, a plant that is treated with STS should not be consumed (it will be covered in pollen sacs anyway) and it can stain fabrics. It’s always a good idea cover up and wear gloves when doing scientific work! - HOW IT WORKS: The Cannabinology STS Spray Kit contains a proprietary aqueous formula of Silver Thiosulfate (STS). When applied to plants at, Silver Thiosulfate (STS) blocks the action of ethylene, the “female” hormone in plants. Blocking ethylene forces a female plant to produce male-type flowers, pollen sacks, and pollen. Since this pollen was made by a female, the pollen can be used to pollinate a non-treated female plant (or branch) creating feminized seeds which will be 100% female. - HOW TO USE: Whether you’re just starting your breeding journey or are a seasoned breeder Cannabinology STS Spray Kits make it easy to make feminized seeds. Add water then a small amount of soap to the STS Spray bottle. Apply STS Spray to a female plant starting on day 1 of flower; repeat every 5 days until day 20 – 30. Pollinate a non-treated female plant. Grow the female plant until seeds are mature. For important tips on using Cannabinology STS Kits, see the included instructions. - BENEFITS: Cannabinology STS Spray Kits provide new and seasoned breeders the easiest method of reversing female plants and producing feminized seeds. You can easily save your favorite phenotypes, produce new feminized crosses, and even flush out rare genotypic or phenotypic traits. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09NF4G57W | | Best Sellers Rank | #31,471 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #233 in Lawn & Garden Sprayers | | Customer Reviews | 4.2 4.2 out of 5 stars (96) | | Item model number | STS8 | | Manufacturer | CBGYscientific | | Product Dimensions | 4 x 3 x 6 inches | ## Images ![Cannabinology Feminized Seed Spray | 8 oz/240 ml Bottle | Breed 100% Female Seeds (Feminized Seeds) | Silver Thiosulfate Spray Kit | STS Spray Kit | Reversal Spray (8 oz - with Spray Bottle) - Image 1](https://m.media-amazon.com/images/I/61wiabPw7jL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Cannabinology Feminized Seed Spray | 8 oz/240 ml Bottle | Breed 100% Female Seeds (Feminized Seeds) | Silver Thiosulfate Spray Kit | STS Spray Kit | Reversal Spray (8 oz - with Spray Bottle) - Plant Feminizing Spray, 3 oz Triple Pack - HydroDynamics Clonex Rooting Compound, 100 ml --- ## 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.kr/products/395679806-cannabinology-feminized-seed-spray-8-oz-240-ml-bottle-breed](https://www.desertcart.kr/products/395679806-cannabinology-feminized-seed-spray-8-oz-240-ml-bottle-breed) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-08-07*