Mary J Apothecary™ STS Spray
The only STS spray engineered for stability, effectiveness, and plant safety. Lab-made with proprietary CannaCoat™ technology. Fresh. Reliable. Guaranteed.
Why Growers Choose Mary J Apothecary™
Our proprietary organic node coating increases absorption by up to 50% faster. Fewer applications needed. Lower cumulative silver exposure. Maximum plant protection.
UV-protected formula stays stable for 6 months at room temperature. Never more than 7 days old when shipped. Every bottle labeled with creation date. Competitors' solutions degrade in weeks.
If your reversal fails, we refund you. No questions asked. Lab-made precision. Consistent quality. Professional results every time.
How to Use MJA STS Spray
Follow these four simple steps for successful feminization. CannaCoat™ technology ensures maximum absorption with fewer applications.
Perfect Timing
Photoperiod Plants: Apply 2 days before switching to 12/12 light cycle, just before flowering begins.
Autoflowers: Begin at 2-3 weeks after germination when plants show early pre-flower signs.
Proper Application
Spray evenly on nodes, stems, and adjacent leaves until lightly coated. CannaCoat™ creates a visible film that adheres to plant tissue for maximum absorption.
Pro Tip: Apply during dark cycle or just before lights off. Let dry for 15-20 minutes before lights turn back on.
Repeat Applications
Reapply every 5-7 days until pollen sacs begin to form. Thanks to CannaCoat™, most growers need only 2-4 applications total.
What to expect: Pollen sacs typically appear within 7-14 days of first application. Full development takes 3-4 weeks.
Harvest Pollen
Once pollen sacs are fully developed and begin to open, collect pollen for breeding. Store in an airtight container in a cool, dry place.
Important: Do not consume any plant parts that were sprayed with STS. Use treated plants for pollen collection only.
Quick Reference Guide
Timing
2 days before 12/12 (photoperiod) or 2-3 weeks (auto)
Application
Spray nodes, stems, leaves until lightly coated
Frequency
Every 5-7 days until pollen sacs form
Results
Pollen sacs visible in 7-14 days, full development 3-4 weeks
Choose Your Size
Treats 5-8 plants
Treats 10-16 plants
Ships within 24 hours•30-day returns•All orders shipped within 7 days of creation
Why Growers Choose Mary J Apothecary™ Over Competitors
| Feature | DIY Chemical Kits | Pre-Mixed Competitors | Mary J Apothecary™ |
|---|---|---|---|
| Product Type | Raw Chemicals to Mix (Multiple Components) | Partially Pre-Mixed or Concentrates (Requires Dilution) | Pre-Mixed, Ready-to-Use Solution (Single Bottle) |
| Shelf Life | 7 Days After Mixing | Varies, Often 1-4 Weeks | 6 Months — No Mixing Required (Stable Formula) |
| CannaCoat™ Technology | No | No | Yes — Up to 50% Faster Absorption |
| Plant Safety | High Damage Risk (Burn, Stress) | Strong Risk, Varies by Brand | Maximum Phytotoxic Protection |
| Lab Created | No | No | Laboratory-Made (Precise, Consistent Quality) |
| UV Protected | No — Degrades Under Grow Lights | No — Not UV Formulated | Yes — Resists UV Degradation from Grow Lights |
| Freshness Guarantee | No — Unknown Production Date | No — No Date Labeling | Never More Than 7 Days Old — Creation Date on Every Bottle |
| Guarantee | None (Use at Own Risk) | Limited or None | 100% Money-Back Guarantee (Risk-Free) |
What Growers Are Saying
It works!
This product worked exactly as advertised. I saw pollen sacs after 3 applications at 5 day intervals. I would highly recommend!
Works!!!!
It works!!!
Best STS I've used
After wasting money on DIY kits that degraded before I could use them, this was a game changer. Fresh product with a date stamp — finally got viable pollen.
CannaCoat makes a difference
I've used other brands and needed 8-10 applications. With MJA I only needed 4 sprays and got better results. The absorption technology is real.
Professional quality
Running a commercial breeding operation and this is the only STS we trust. Consistent batches, reliable results, and the 6-month shelf life means we can stock up.
Finally succeeded after 3 failed attempts
Tried Cannabinology twice and killed my plants. Tried another brand and got zero pollen. MJA worked on the first try with no plant damage. Worth every cent.
Frequently Asked Questions
Still have questions?
Contact us or check our complete guide to STS spray and feminized seed production.