Every seed we ship has a documented genetics report.
Royal King Seeds is the only US seed bank that publishes a full Certificate of Analysis for every strain in our catalogue — cross-verified by an ISO 17025 lab and co-signed by our breeding team. Pick any strain below to see the report.
What “Genetics Verified” means
Three independent verifications combine into one document for every strain we publish.
Stabilization
Every line on this page has been carried through at least three filial generations of phenotype-driven selection — F3, F4, F5, IBL, or BX — with twelve mother plants per cycle. This is the only way to guarantee that the seeds you grow express the genetics you bought.
Independent Testing
Each batch is sent under chain-of-custody to an ISO/IEC 17025-accredited cannabis lab for cannabinoid potency (HPLC-DAD), terpene profile (GC-FID), and an 8-category safety screen — pesticides, heavy metals, microbials, mycotoxins, residual solvents, foreign matter, filth, and water activity.
Breeder Authority
Our Master Breeder co-signs every Certificate alongside the laboratory director. The narrative on each report — selection criteria, breeding objective, cohort variation envelope — is documented by the team that bred the line, not generated from public databases.
What a genetics report looks like
- ✓Verified header with lab + brand identity, batch ID, sample ID, and chain-of-custody protocol
- ✓Cannabinoid profile — THCa, Δ9-THC, CBDa, CBD, CBG, CBC, CBN with LOQ values
- ✓Terpene profile — top 5–8 terpenes with %, mg/g, and aroma notes
- ✓8-category safety panel with PASS/FAIL badges
- ✓Phenotype consistency bar showing cohort variation envelope
- ✓Stabilization status with trait-locking criteria checklist
- ✓Expected grow outcomes — flower time, yield, height, difficulty
- ✓Dual signatures: Lab Director + RKS Master Breeder co-sign
Browse genetics reports
Amnesia Haze Feminized
OG Kush Feminized
Granddaddy Purple Feminized
G13 Feminized
Forbidden Fruit Feminized
Fruity Pebbles Feminized
Hindu Kush Feminized
A-10 Auto
Acapulco Gold Auto
Cake Bomb Feminized
Permafrost Feminized
Sensi Star Feminized
Afghan Hawaiian Feminized
Crystal Coma Auto
Cheetah Piss Feminized
Red Congolese Auto
Fresh Cookies Feminized
Afghan Kush Feminized
Northern Sunrise Feminized
Green Goddess Feminized
Purple Punch Feminized
Pineapple Diesel Feminized
Blue Afghani Feminized
Black Cherry Feminized
Bred, selected, stabilized — and documented.
Royal King Seeds is a working genetics company. Every strain on this page comes from our breeding floor, not a re-bagged catalogue. The reports you see here are the same documents we use internally to track phenotype consistency across cycles — published openly so you can verify what you’re buying.