Fat Blaster
What it’s used for
Community reports
Fat Blaster is a marketing name for injectable blends of carnitine, lipotropic nutrients such as methionine, inositol and choline, B vitamins including B6, and NADH; formulas and strengths vary by maker. People use it for weight loss, fat metabolism and energy. The single ingredients have their own research, but no study has tested this combined injection.
- Fat metabolism Used for fat burning and weight loss. Evidence is for single ingredients like carnitine, not this blend.
- Energy Used for energy; any boost may depend on whether you're low in these nutrients.
- Liver support Choline and methionine play roles in how the liver handles fat.
- Insulin sensitivity Inositol and B6 have been looked at for insulin sensitivity on their own, not as part of this blend.
What to expect
- Weeks 1–2
Possible energy boost, mainly if you were low in these nutrients
- Weeks 2–12
Modest or no change; weight depends mostly on diet and activity
Side effects & safety
Side effects
- Stomach upset, odor, headache or restlessness
- Nerve damage (neuropathy) is possible with repeated high B6 exposure
Stop and get help if
- Allergic reaction
- Signs of injection-site infection, or fever
- Numbness, tingling or weakness
- Severe stomach symptoms or unusual tiredness
Which symptoms mean call 911 or see a doctor
What regulators say
- Formulas and concentrations differ by maker, and compounded versions aren't FDA-approved for effectiveness.
Why most peptides aren’t FDA-approved What’s really in “research use only” vials
Avoid or check first if
- Liver disease — needs review before use
- Taking MAOIs — a psychiatric-medication concern is flagged
- Taking blood thinners — bleeding concern flagged
- Already taking B-complex supplements — risk of too much B6
In sport
Not on WADA’s banned list. Its usual ingredients, such as carnitine, methionine, inositol, choline and B vitamins, aren’t on the list. The risks are undeclared extras and drips: a 1 mL shot is fine, but more than 100 mL by IV in 12 hours breaks the IV rule.
Which peptides are banned in sport
How much people take
For every goal: Under the skin or into muscle
- General metabolic support 1–2× weekly 1 mL per vendor formulation
- Weight management program 2–3× weekly 1 mL
- Athletic & performance support 2–3× weekly 1 mL
- Liver & metabolic health 1–2× weekly 1 mL
How to store it
How many units do I draw?
Fridge · 2–8°C Comes premixed. Protect from light; throw out if cloudy or discolored.
Ready to use
The injectable form doesn’t need mixing.
Injecting under the skin Where, rotating sites, which syringe
- Where: belly (at least 2 in / 5 cm from the navel), front of the thigh, or back of the upper arm.
- Rotate sites each time and skip bruised, scarred or sore skin.
- Syringe: most people use a U-100 insulin syringe with a short, thin needle (29–31 gauge, 8 mm or shorter).
- How: wipe with alcohol and let it dry, pinch the skin, go in at 45–90°, push slowly. Use each syringe once.
General practice for under-the-skin injections, not specific to Fat Blaster.
The full guide: how to inject safely
Combining it with others
AI assessment Based on how each compound works, not on studies of the combination. How we assess
Don’t combine 1
- Lipo-C Overlapping nutrient mixes, so you’d double the same ingredients.
Use caution 1
- L-Carnitine Fat Blaster mixes usually contain carnitine. Check the label before adding more.
Can be combined 8
Semaglutide Tirzepatide Retatrutide Survodutide Mazdutide Orforglipron AOD-9604 5-Amino-1MQ
What the research says
Untested in people
- Ingredient studies (carnitine, inositol, B6, choline, NADH) don't show what the blend does together.
- Side-effect rates and a safe self-use routine for this product are unknown.
- ‘Detox’ claims for the liver aren’t backed by clinical outcomes.
What studies found
- Ingredient evidence does not test the blend The listed bibliography concerns individual nutrients, other formulations or broad nutrition research. No controlled study of this exact named injectable combination was identified in the targeted search.
How long it stays in your body
Half-life is how fast the level in your body halves — not how long effects last or how often to dose.
- Half-life
- Differs by ingredient
Commonly listed as 4 hours, but each ingredient clears at its own rate.
What it’s made of
- Length
- Not a single peptide
- Molecular weight
- Varies
- Formula
- Varies
A blend of several compounds, so there is no single sequence.
What's in it
Multiple ingredients; amounts vary by product.
Ingredient identities and quantities vary by formulation.
Sources
Sources 8
How this page was made
How it may work: Ingredients participate in fatty-acid transport, liver lipid handling, methylation and energy metabolism; nutrient roles do not prove injectable-blend benefit.
Preparation in studies: A blend name does not specify concentration, ingredients or a diluent. Use the exact product documentation; no universal dilution is established.
No standardized formula or validated combination timeline; interaction classifications are source claims.
Research last checked: Oct 12, 2026 (a targeted search, not a full review).
Community doses, how long people take it, timing and storage are compiled with AI from public peptide guides, clinics and forums, cross-checked against other sources where we could, and rewritten in plain language. “Combining it with others” is an AI assessment of how the compounds work. Study notes are written from each paper’s abstract where one exists. How we source
Original source guide