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Thanks for your question mate!
For complementing
@SalvatoreCorvus answer…
Is not a simple question to answer since this is the MAGIC of the EXPERIENCE of the lab… namely, quality and know-how…
However… as a general rule of thumb is a mix of decisions:
1. Viscosity: “How thick that gear is”, no all raw compounds disolved the same during compound prep, since molecularly they differ in structure, so you choose based on final results (Trial prep and lab testing)
- If it’s too thick, it’s gonna feel like injecting peanut butter. Painful AF.
- Thinner oils (like MCT or EO) = smoother injects, easier to push through a smaller gauge (like 25g).
- Thicker ones (like castor or sesame) = harder to push and might leave a lump.
2. Sterility and Filtering – “Will this oil fill and stay, or move with body’s natural flow?”**
- The oil must be able to handle sterile filtering (0.22 micron) without turning into a nightmare.
- Some oils clog filters or break down with heat, which is a recipe for abscesses or infections.
- Human-grade prep = clean, filtered, bacteriostatic = no ER visits hahaha
3. Solubility – “Can this oil itself dissolve the gear?”
- Not all hormones dissolve well in every oil.
- Some compounds (mostly those NOT in portfolio like Superdrol or Anadrol injectable) need solvents like EO or Guaiacol just to stay in solution.
- If your gear crashes (i.e., crystallizes), is it reconstitutable by domestic heat sources?
4. Allergenicity – “how overall consumer immune system reacts?”
- Some people get reactions from certain oils.
- Cottonseed and peanut oil are no-go for people with allergies (for example)
- MCT is one of the cleanest in terms of low reactivity = often the go-to.
5. Injection Site Tolerance – “Is your delt gonna explode?”
- Some oils cause post-injection pain (PIP) more than others.
- For example, Ethyl oleate (EO) is great for high-concentration gear but can cause mad swelling for sensitive bros
6. Shelf Stability – “How long can this sit in your drawer?”
- Oils need to be stable over time – not go rancid, separate, or oxidize.
- Grapeseed oil goes bad faster than MCT or GSO (Grape Seed Oil) with heat/light. (KEEP YOUR GEAR SAFE
)
- Always store cool, dark, tight-sealed. Like @SalvatoreCorvus secrets hahaha
7. Absorption Rate – “How fast does your body takes to completely consume and metabolize it up?”
- Thinner oils usually = quicker absorption.
- Slower oils like sesame or castor can cause lingering soreness or depot buildup.
- Fast in, fast gains? Well, depends too
So, if you choose among all those, then you have the partly know how to select and homebrew you own gear…
Some people thinks is just buy and do… but, well, here are some tricks of the trade
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