Certificates of analysis (COA)
At E-joint.nl, transparency and honesty are our top priorities. That’s why we provide Certificates of Analysis (COAs). COA’s are official lab reports that confirm the exact contents and purity of our products. These third-party tests verify cannabinoid levels, terpene profiles, and screen for any unwanted substances, so you know exactly what you’re vaping.
Not sure how to read COA’s? Read our full guide.
Hidden Hills
Hidden Hills products are lab-tested by KCA Laboratories, one of the most recognized cannabinoid testing labs in the United States. KCA specializes in third-party analysis of hemp and cannabis products, using advanced equipment to verify cannabinoid content, terpene profiles, and potential contaminants. With official COAs available for each batch, you can trust Hidden Hills for full transparency and consistent quality.
Hidden Hills 2g - THC blend
Hidden Hills 3g - HHC blend
Hidden Hills 2g dual chamber
- Pink Berry Kush: Click to view COA
- Peach Funfetti: Click to view COA
- Green Zlushie: Click to view COA
- Yellow Znow Cone: Click to view COA
- Uzumaki: Click to view COA
- Uchiha: Click to view COA
- Hawaiin Oreoz: Click to view COA
- Lato Pop: Click to view COA
- Jungle Juice: Click to view COA
- Purple Brain Berry: Click to view COA
- Pink Picasso: Click to view COA
- Mango Zoda: Click to view COA
Moon Buzz
All Moon Buzz cartridges are lab-tested by Accurate Test Lab, a certified third-party facility specializing in cannabinoid analysis. These reports confirm the purity and potency of each product, ensuring you get clean, high-quality THC, just as promised.
Curevana
All Curevana cartridges are lab-tested by Accurate Test Lab, a certified third-party facility specializing in cannabinoid analysis. These reports confirm the purity and potency of each product, ensuring you get clean, high-quality THC, just as promised.
Flower Dept.
Flower Dept. is known for producing potent Liquid Diamonds vapes with a clean, flavorful profile. All products are independently tested by FESA Labs, ensuring transparency, verified potency, and consumer safety. Lab results confirm the brand’s commitment to delivering high-quality, trustworthy vape products.
- Waterlato: Click to view COA
- Tripple Punch: Click to view COA
- Sunday Split Cone: Click to view COA
- Russian Peaches & Cream: Click to view COA
- Lemon Cherry Tropics: Click to view COA
- Grape Ape: Click to view COA
- Dirty Sprite: Click to view COA
- Cough Berry: Click to view COA
- Colada Pintz: Click to view COA
- Blue Jammers: Click to view COA
Cookies
Canadelaar (Rosin)
Canadelaar products do not have public COAs, but they are regulated under the official Dutch cannabis experiment. This means all products are subject to strict government quality control. Each vape is made with 100% pure rosin, without additives or synthetic terpenes, offering a clean and natural experience, guaranteed by the Dutch government’s oversight.