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The Best Silver Thiosulfate of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Silver Thiosulfate of 2023. Check our ranking below.

2,516 Reviews Scanned

Rank No. #1

12 Oz Silver Thiosulfate Solution (Special Summer Pack) | Feminized Seeds | Autofem Seeds

Feminized seeds for your gardens needs.

Rank No. #2

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.

Rank No. #3

Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.)

Packaging and Labeling May Vary Product has an indefintie shelf life

Rank No. #4

Feminized Seed Spray | 8 oz/240 ml Silver Thiosulfate Spray Kit | STS Spray Kit for breeding feminized Seeds | Reversal Spray (8 oz)

EASILY MAKE 100 percent 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 percent 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.

Rank No. #5

Silver Thiosulfate Solution Concentrate 16 Oz | Feminized Seeds | Autofem Seeds

Concentrates A & B are formulated to last for 6 months. Mix as needed.
The concentrate allows you to mix any small amount and or up to 16 Oz.

Last update on 2025-07-10 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best Silver Thiosulfate?

Do you get stressed out thinking about shopping for a great Silver Thiosulfate? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Silver Thiosulfate, which is why we have assembled a comprehensive list of the greatest Silver Thiosulfate available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Silver Thiosulfate that you consider buying. Your questions might include the following:

Is it worth buying an Silver Thiosulfate?
What benefits are there with buying an Silver Thiosulfate?
What factors deserve consideration when shopping for an effective Silver Thiosulfate?
Why is it crucial to invest in any Silver Thiosulfate, much less the best one?
Which Silver Thiosulfate are good in the current market?
Where can you find information like this about Silver Thiosulfate?

We’re convinced that you likely have far more questions than just these regarding Silver Thiosulfate, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Silver Thiosulfate, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Silver Thiosulfate. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Silver Thiosulfate buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Silver Thiosulfate currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Silver Thiosulfate has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Silver Thiosulfate?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Silver Thiosulfate.
Customer Ratings: Number ratings grade Silver Thiosulfate objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Silver Thiosulfate.
Product Quality: You don’t always get what you pay for with an Silver Thiosulfate, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Silver Thiosulfate is should be an indication of how long it will work out for you.

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FAQ:

Q: When to use silver thiosulfate in plant culture?

A: Silver Thiosulfate is often used to block the action of ethylene in plant cell cultures. Ethylene gas is a hormone that increases during senescence and ripening. It may increase in plant cell cultures due to wounding or presence of auxins. Silver Thiosulfate (STS) blocks the action of ethylene more effectively than silver nitrate.

Q: How to make silver thiosulfate with silver nitrate?

A: Dissolve pouch 2 (1.7g Silver Nitrate) in 100 mL water to create a 0.1M stock solution. Prepare 0.02M (20mM) Silver Thiosulfate by adding 20 mL 0.1 M silver nitrate into 80 mL 0.1M sodium thiosulfate (or amounts in ration of 4 parts thiosulfate solution to 1 part silver nitrate solution).

Q: How long does it take for silver thiosulphate to dissolve?

A: The silver nitrate dissolves within 15 seconds. The sodium thiosulfate takes 30-45 seconds to dissolve. The silver nitrate solution (A) is then mixed into the sodium thiosulfate solution (B) while stirring rapidly.

Q: What is the molecular formula of sodium silver thiosulfate?

A: Sodium silver thiosulfate PubChem CID 150303 Structure Find Similar Structures Molecular Formula AgNa3O6S4 Synonyms Sodium silver thiosulfate UNII-25USN6U77 … Molecular Weight 401.1 2 more rows …

Silver Thiosulfate