The ones I sent for testing were the green cap 20mg vials.
Here are the Reta results from Finnrick:
Rating C from 39 samples tested, latest test on 18 Dec 2025. Finnrick Analytics conducts independent testing and verification of product quality and authenticity
www.finnrick.com
Using the October results as a reasonably recent dataset (trigger warning...some people hate this site, but I've found their testing to be consistent, with lab reports/COAs to back up the recent questions re: underdosing), there are 17 samples from WWB Reta tested in October. Five of them were either at the reported quantity, or overdosed by an average of about 10%. 12 of them were underdosed at an average of about 5%. Depending on your dose this average may be meaningful, and if you're one of the unlucky ones whose vials came in at closer to 10% under-dosed, you will definitely need more Reta per dose to get your desired effect.
Some claim there are "tons" of Janoshik tests that combat the above data. Nobody has produced these reports (outside of the tests WWB sent to Janoshik, which, like with all vendors are more than likely handled differently than what they sell, and likely reflect as close to perfect as they could cultivate. It would be silly for them not to do this as they use these to convince customers to place an order). But anecdotally some people are convinced that these phantom Jano reports contradict the above data.
I am not married to the Finnrick data. But until we see a similar dataset that challenges it, it's what we have to go on. Combined with recent anecdotes of people needing more than the labeled dose for an effect, it seems plausible that there is at least some underdosing for Reta at WWB. I've still ordered it knowing this, but I test every batch I receive and adjust my dose accordingly.