Advanced Nutrients is bringing a major upgrade to cannabis cultivators across the USA. RSA™ (Rapid Silicic Acid)’s revolutionary formula delivers stronger stems, reduced stretch, and the structural integrity your plants need to support massive yields.
USA: Starting April RSA will be the only official silica-based additive Advanced Nutrients will be supplying. Rhino Skin – discontinued.
Worldwide: same rollout will follow later this year.
This is a complete formula evolution backed by 27+ years of cannabis research.
What Makes RSA Different
RSA is part of our 8th-Generation Elite Series – the nutrient system built for high-performance commercial cultivation. Advanced Nutrients develops solutions specifically for cannabis, not repurposed agriculture products.
Here’s what RSA delivers:
- Immediate bioavailability – no waiting for conversion
- 40+% monosilicic acid from 13% soluble silicon
- Reduced stretch – for more compact, productive canopy structure
- Fortified stalks and stems – preventing breakage under heavy bud weight
- Pest and pathogen resistance – creating a protective barrier against insects and powdery mildew
- Universal compatibility – works seamlessly with all base nutrients and additives
The Science Behind the Solution
Built for Commercial Performance
Advanced Nutrients’ 8th-Generation Elite Series represents our most powerful system yet – designed to help licensed producers drive yields, enhance terpenes, and run leaner, more profitable grows.
RSA fits this mission perfectly.
How to Use RSA in Your Grow
Implementation is straightforward: add 0.5 mL per gallon (0.13 mL per liter) to your nutrient solution throughout vegetative and bloom phases.
Application Guidelines
- Shake bottle well before each use
- Mix fresh reservoir weekly for hydroponic systems
- Apply daily
- Use consistently from early vegetative through late bloom
The low dose requirement (0.5 mL per gallon / 0.13 mL per liter) means one bottle of RSA goes further than high-dose potassium silicate products, delivering better value alongside superior performance.
Proven Science, Guaranteed Results
Advanced Nutrients holds one of the first government-issued licenses to grow cannabis for research purposes. This access enabled our PhD plant scientists to study silicon’s role across tens of thousands of plants and hundreds of genetic varieties.
Today, growers in 128+ countries rely on Advanced Nutrients’ science-backed solutions to get the most from their cannabis. RSA represents the latest evolution in that commitment to performance.
Like all Advanced Nutrients products, RSA comes with our 100% Money-Back Grower Guarantee. If you don’t see stronger stems, reduced stretch, and improved plant resilience, return the unused portion for a full refund.
USA Launch, Global Vision
RSA has officially launched in the U.S. market at the beginning of 2026 and now represents the next-generation evolution of Rhino Skin in the USA. As of March 31, we will discontinue the sale of Rhino Skin in the U.S. market. These changes will be applied globally throughout 2026. For more information for your geographic area please reach out to your local sales representative or support@advancednutrients.com – for home growers.
Our support and sales teams are ready to help you get the most out of RSA. Whether you’re a home grower dialing in your first setup or a licensed producer managing thousands of square feet, we’re here to ensure RSA delivers the results you deserve.
Your Next Steps
RSA represents a significant step forward in silicon supplementation for cannabis. Stronger plants mean bigger yields, better quality, and the structural foundation to support world-class flower.
Visit our 8th-Generation website to learn more about RSA and the complete Advanced Nutrients 8-th Generation Elite Series.
Frequently Asked Questions
When do I add RSA in the reservoir order?
Add RSA to your reservoir first, and allow it to fully mix before adding your base nutrients or other products. This ensures optimal integration and prevents compatibility issues.
How often should I feed RSA to my plants?
You should apply RSA continuously throughout all weeks of both the Grow (Vegetative) and Bloom (Flowering) phases.
Is RSA compatible with my growing setup?
Yes. RSA is specially designed for use with all hydroponic growing media, including coco coir. It is also compatible with continuous liquid-feed growing systems such as aeroponics, drip irrigation, NFT, flood and drain, and deep water culture.
Will it clog drip lines or filters?
No. RSA’s stabilized monosilicic acid formulation stays in solution and won’t polymerize in your reservoir. Unlike some potassium silicate products that can cause buildup, RSA maintains clean delivery through drip systems, filters, and irrigation lines.
How fast will I see stronger stems?
Results appear within 7-14 days of consistent application. Plants show noticeably thicker stalks and more rigid stem structure by the second week. The earlier you start RSA in vegetative growth, the more pronounced the structural benefits.
Is it safe with beneficial bacteria?
Yes. RSA’s stabilized monosilicic acid formulation is compatible with biological inoculants. The stabilized monosilicic acid formulation supports microbial populations without disruption, making it ideal for growers running biological inoculants like Voodoo Juice® Plus.
How should I store RSA?
We recommend storing the product between 55ºF and 85ºF. Always remember to shake well before use.
The Future of Cannabis Nutrition Starts Here
Advanced Nutrients built its reputation on delivering science-backed solutions that actually perform in real-world cultivation. RSA continues that tradition with a formula that eliminates the limitations of traditional silica supplementation.
Stronger stems. Reduced stretch. Bigger yields. That’s the RSA difference.
Learn more on the official RSA product page or contact our team today at (424) 435-1545 or sales@advancednutrients.com.
¹ Importance of Silicon and Mechanisms of Biosilica Formation in Plants.
