RSO (Rick Simpson Oil) – 5G | Full-Extract Cannabis Oil (FECO)
RSO (Rick Simpson Oil) is a traditional full-extract cannabis oil prized for its dense cannabinoid and terpene profile. Unlike highly refined distillates, RSO retains a broader spectrum of plant compounds after decarboxylation, delivering a thick, dark extract with a characteristic herbal aroma. This 5-gram format (5,000 mg oil) is presented in a jar or precision syringe so you can measure tiny, repeatable portions with confidence.
What to expect
Each batch of RSO can vary in cannabinoid ratios and terpene content depending on the source material. That’s why we publish a third-party Certificate of Analysis (COA) for every lot. The COA details total cannabinoids (including Δ9-THC), potential residual solvents, heavy metals, pesticides, microbial screens, and terpene fingerprint. Always consult the COA to understand potency before portioning.
How to portion Rick Simpson Oil (RSO)
RSO is highly concentrated. A tiny grain-of-rice amount is typically ~0.05 g (≈ 50 mg of oil). Start with a very small amount and wait 60–120 minutes to assess personal response before considering any adjustment. Onset and duration can vary with metabolism and recent meals—start low, go slow. If you transfer RSO into recipes or carriers, mix thoroughly for uniform distribution and re-calculate portions using your COA’s mg/g values.
Storage & handling of Rick Simpson Oil (RSO)
Keep sealed in a cool, dark place. Warm gently (hand warmth) if the texture is too thick to dispense; avoid open flames or high heat. Use clean tools to prevent contamination and close promptly after each use.
Ingredients
Full-extract cannabis oil (decarboxylated).
Compliance note (UK)
Important: Traditional RSO typically contains high levels of controlled cannabinoids and will exceed the UK threshold of ≤ 1 mg total controlled cannabinoids per container. In Great Britain this makes the product a controlled item not for general retail sale unless the necessary licenses are held. For official guidance, see the Misuse of Drugs Act 1971 and the Home Office drug licensing factsheet. Ensure any listing clearly reflects regional availability and legal status.
Warnings
Adults 18+ only. May be intoxicating. Do not drive or operate machinery if impaired. Not for use during pregnancy or breastfeeding. Keep out of reach of children and pets.






Reuben –
I made my first purchase at Relva DC this afternoon and let me just say the experience was extremely pleasant from start to finish. I ordered my product via leafly and arrived at the store to pick it up. I received a warm welcome from the security guard, employees, and the store dog (Who is very cute by the way). The gentleman who helped me was very knowledgeable about the products, made some recommendations for me based on what I told him I like, and overall made me experience GREAT. From this day forward i will definitely be a regular!
Kian –
Big fan of this shop! Been here multiple times already bc they’ve got great stuff. Definitely recommend to a friend.
Ben –
Not being knowledgeable about the products and options, having informed customer service was quite comforting. Certain to be back the next time I’m in the area.
Kyle –
really potent nug, and its actual quality not just mass produced.
Louie –
**Excellent Dispensary!** ⭐⭐⭐⭐⭐ Friendly and knowledgeable staff, **fresh, high-quality cannabis**, and a **clean, well-organized** facility. A seamless experience from start to finish—highly recommend!
Even –
I stopped into RELVA the other evening for the very first time and I was very excited to finally visit this wellness center because I have heard so many wonderful things and I have to say now with having some time passed, my overall experience here left such a remarkable impression that I felt physically compelled to follow and leave a review. First, I have to say the staff was incredible; Marcus is very professional, personable, and more than that KNOWLEDGABLE. I know that everyone can relate to how the lack of these key elements can ruin anyone’s experience. You can tell Marcus takes pride in his products and his work; he is able to break down and discuss everything in detail whether you are newbie to wholistic healthcare/products or a seasoned consumer. RELVA delivers absolutely on all levels – not only do they offer a wide-range of diverse wellness products – but they really seem to dedicate the time to each and every client individually, Marcus talked to us, asked us questions and I remember feeling that I would be very comfortable if I ever wanted to discuss more personal goals/ideas (I.e. anxiety, insomnia,etc) and feel the utmost confidence that he would be able to provide the most personalized and educated recommendation(s) for me personally and/or any given individual. I will close this review by saying that RELVA is pretty new and coming from someone who has seeked out and visited many different wellness centers (and more often than not left disappointed) I have to say that RELVA has far surpassed my expectations; and more than that, they were able to provide an incredible cultural experience that raises the bar and sets the new standard for all other wellness centers in the DMV – which leaves you wondering where the hell have they been all this time? Well – they are here now and I couldn’t be more thankful for that and I don’t see myself going anywhere else from here on out. HOWEVER – at the end of the day, these are just my words and if you take away one thing from this review I hope it is this: Do right by yourself and go treat yourself to your very own RELVA experience.
Ashton –
The customer service is amazing and the owner is the best to talk yo if u need suggestions the product is out of this world will be back from Baltimore
Gabriel –
Best online store in Uk! Amazing range of products and great deals. Love this store definitely coming back ASAP
Bailey –
This place is great!!!! Female associate was very knowledgeable and friendly!!! Will definitely be going back!!!!
Hayden –
Shhh, this is The BEST of Uk!!! New, super classy spot with high quality herb and edibles.
Joel –
Dope space and the flower is the best in the city! Definitely stop by if you looking for great quality!!
Arthur –
Awesome products and gummies are AWESOME…big thanks to Chris for the great customer service.