Compare formulas
Spine & Nerve and Nerve Boost: How They Work Together
Spine & Nerve is the daily formula; Nerve Boost adds extra Lion’s Mane alongside it. How the two ImmuBiome formulas differ and when owners use both.
- 4.93 from 5,590 reviews
- Free US shipping on subscriptions
- 30-day returns, even opened tubs
This one isn’t really an either/or. Spine & Nerve is the daily formula, our most reviewed, with six mushrooms and the full gut-first base. Nerve Boost is a top-up of extra Lion’s Mane for horses who need more nerve support, and it’s made to go alongside Spine & Nerve rather than instead of it.
Side by side
| What | Spine & Nerve | Nerve Boost |
|---|---|---|
| Built for | Daily spine and nerve support, back comfort | Extra nerve support on top of Spine & Nerve |
| Mushrooms | Lion’s Mane, King Trumpet, Antrodia, Reishi, Cordyceps sinensis, Cordyceps militaris | Lion’s Mane only |
| Colostrum | 1,500 mg | None |
| Probiotics | 3 billion CFU | None |
| Prebiotics | 8,000 mg | 10,000 mg |
| Beta-glucans | 25% minimum | 15% minimum |
Start with Spine & Nerve
For the senior who’s getting stiff behind, the athlete in regular work, or the horse whose back and coordination you want to look after every day, Spine & Nerve is the foundation. Lion’s Mane leads, with five more mushrooms for antioxidant and immune support, plus colostrum and probiotics. Our Lion’s Mane page explains why it’s at the center.
Add Nerve Boost when he needs more
Nerve Boost is all Lion’s Mane plus prebiotics, with no colostrum or probiotics, because Spine & Nerve already brings those. Owners add it for horses in intense training or horses whose vet wants extra nerve support in the plan. If your horse’s gait, coordination or comfort changes, call your vet before changing anything.
Both live in Spine & Nerve Support. For background, see our posts on EPM and Wobblers.
Still deciding? Try the Formula Finder or see every tub size on Compare Formulas.
Questions owners ask
Can Nerve Boost replace Spine & Nerve?
No. Nerve Boost is extra Lion’s Mane and prebiotics without the colostrum, probiotics or other five mushrooms, so it’s made to go alongside Spine & Nerve rather than instead of it.
Does my horse need both?
Most horses do well on Spine & Nerve on its own. Owners add Nerve Boost when their horse needs more nerve support, often on their vet’s advice.
Why doesn’t Nerve Boost have probiotics or colostrum?
Because it’s designed to sit alongside Spine & Nerve, which already carries 1,500 mg of colostrum and 3 billion CFU of probiotics. Nerve Boost keeps the focus on Lion’s Mane.
Shop formulas
Shop Spine & Nerve and Nerve Boost
Every formula ships free on subscription, and you can return any tub within 30 days, even opened.
Spine & Nerve
4.9 (1273)
From $69
Lion’s Mane plus five more mushrooms, colostrum and probiotics for daily spine and nerve support.
Nerve Boost
4.91 (106)
From $69
Extra organic Lion’s Mane and prebiotics, made to go alongside Spine & Nerve.
These statements are about nutritional support only. ImmuBiome supplements are not drugs and don't take the place of veterinary care. Talk with your veterinarian about your horse's specific needs.

