Last updated: June 2026.
How Serene Leaf researches and compares CBD products.
Research, not lab testing
We do not operate a laboratory. Instead, we verify each brand’s third-party Certificate of Analysis (COA) and compare products on transparent, public information. Lab results are attributed to the brand and its testing partner.
What we look at
- Lab transparency — an accessible COA confirming cannabinoid content.
- THC content — we prioritize THC-free and non-detectable options.
- Formulation — ingredients, carrier oils, and intended topical use.
- Value — price per unit of CBD.
- Customer feedback — verified, real-world experience.
What we cover
We cover both topical CBD (balms, creams, salves) and ingestible CBD (oils, gummies, capsules), prioritizing brands that publish third-party lab results. For paid advertising, topical products have clearer regulatory footing; we flag the legal picture in each review.