---
product_id: 395679806
title: "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: "KD 17.85"
currency: KWD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.kw/products/395679806-feminized-seed-spray-8-oz-240-ml-bottle-breed-100
store_origin: KW
region: Kuwait
---

# 100% Female Seeds Safe & Non-Toxic Proprietary STS Formula 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:** KD 17.85
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock Your Breeding Potential with Ease!

## Quick Answers

- **What is this?** 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?** KD 17.85 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/395679806-feminized-seed-spray-8-oz-240-ml-bottle-breed-100)

## 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

- • **🛡️ Safety First:** Non-toxic and non-allergenic for peace of mind.
- • **📅 Simple Application:** Just spray every 5 days for optimal results.
- • **🌍 Global Breeder Trust:** Join breeders worldwide in revolutionizing your cultivation.
- • **🔄 Proven Effectiveness:** More reliable than colloidal silver and other methods.
- • **🌟 Effortless Feminization:** Easily create 100% female seeds with our user-friendly kit.

## Overview

The Cannabinology STS Spray Kit is a comprehensive solution for producing 100% female seeds. This 8 oz/240 ml kit features a proprietary Silver Thiosulfate formula that simplifies the process of sex-reversing female plants, making it ideal for both novice and experienced breeders. Safe, non-toxic, and easy to use, this kit empowers you to create feminized seeds at home or in a commercial setting.

## 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.

## Images

![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)
![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 2](https://m.media-amazon.com/images/I/61cL2BeDvfL.jpg)
![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 3](https://m.media-amazon.com/images/I/61oA6Tn9euL.jpg)
![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 4](https://m.media-amazon.com/images/I/51m7hoLf-NL.jpg)
![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 5](https://m.media-amazon.com/images/I/61+nY6GPyfL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by B***D on October 19, 2023*

I ordered this awhile back to work on a breeding project unfortunately that plan fell through so this item sat under my kitchen sink for over a year forgotten.Recently I came across it and decided to see how well it would perform after over a year of storage.Using RO water and following the instructions I mixed it up, following the spray times also included in the instructions I began my experiment.I'm happy to say that not only do I have a bunch of reversed pollen the plant has self seeded.Definitely a product to use if you are interested in creating your own female plants.***Because of the plant I used I can not show photos***

### ⭐⭐⭐⭐⭐ Worked Perfectly
*by J***G on December 1, 2023*

I was skeptical, I followed instructions and a few suggestions from others which seemed pretty realistic, I had a few people tell me I wasted my money and this is just a gimmick item. Well I used as directed/suggested and now I have plants producing seeds for me that I can no longer purchase. The plants I have grown from the seeds produced using this spray have all been strong, healthy, and without any noted genetic mutations. Will buy it again

### ⭐ Doesn't work, bottle comes almost empty.
*by R***6 on March 22, 2025*

This bottle came with the bottle 5-10% full of spray, basically empty, so I assumed you filled it with water and mixed ot up. Very weak, applied it all as it should be, did not work. Waste of money. Onto the next. Don't waste money on this one. This bottle comes maybe 5-10% full of concentrate its junk. Not even enough to reverse a single plant.

## 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)
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**Shop now:** [https://www.desertcart.com.kw/products/395679806-feminized-seed-spray-8-oz-240-ml-bottle-breed-100](https://www.desertcart.com.kw/products/395679806-feminized-seed-spray-8-oz-240-ml-bottle-breed-100)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-27*