BIOMETONIC *Organic herbal blend for horses - pathogen-disrupting, gut-balancing, oily-herb heroes
BiomeTonic harnesses the power of nature’s aromatic oily herbs - botanical allies traditionally used to help keep the digestive environment clean, balanced, and resilient.
When your horse’s gut starts feeling “off,” it usually doesn't take long for you to notice:
- A belly that suddenly feels touchy
- That right-hind swish when you groom
- Or the classic “Nope!” face when you reach under for the girth
Gut issues show up in a myriad of ways - and oily herbs have been used for generations to help steady this very picture by supporting the gut’s natural “housekeeping” system.
BiomeTonic isn’t a probiotic, it's not a dysbiosis treatment - it simply helps maintain a clean digestive environment where unwelcome microbial pathogens and parasites won't want to take up residence.
BiomeTonic is your ongoing gut-maintenance support
- helping sustain the intestinal environment horses evolved to thrive on, thanks to its aromatic polyphenols and plant compounds nature designed them to eat.
The result? A happier GI tract, steadier digestion, and a whole lot less " don't touch me there !".
✨ “What a difference in just 24 hours - no more biting, and I can touch his belly comfortably now!”
Emma
For the latest insights on equine gut health, see our A-Z Equine Condition/Gut System
page.
Overview
Since 2020, we’ve been tracking the science of the equine gut biome, and the truth is: horses don’t need us to add microbes - they need us to feed the ecosystem that’s already there.
Horses evolved on diverse grasses, herbs, and plant compounds that naturally nourished their microbial community. The equine hindgut wasn’t designed for added factory-farmed yeasts, lactobacillus blends, or sugar-based “gut balancers.”
That ecosystem evolved on:
- mixed-species grasses
- fibrous forage
- aromatic plants
- polyphenols
- natural prebiotic fibres
…not handfuls of manufactured bugs, many of which acidify the hindgut, making microbial sensitivity worse , not better.
BiomeTonic follows that natural model.
It doesn’t try to replace the microbiome - it supports the environment
good microbes thrive in.
Paired with quality meadow hay and a fibre-first diet, these botanicals help maintain a digestive environment that feels familiar to the horse - stable, diverse, cooperative, and self-regulating.
Human studies mirror this too. Adding a few bacterial strains rarely creates lasting change, with only around 15–25% of people reporting benefits, while others notice no shift at all.
The same applies to horses, whose hindgut biome is far more complex - and far more sensitive - than any probiotic mix can replicate.
So instead of “adding bugs,” BiomeTonic focuses on feeding probiotically -
nourishing the gut in the way nature intended, and helping it rebalance itself from within.
In short? Healthy forage + natural prebiotics + aromatic oily herbs = a calmer, more resilient equine microbiome. BiomeTonic simply helps keep that balance steady, day after day.
Is BiomeTonic Right for Your Horse?
BiomeTonic is your ongoing intestinal maintenance blend - when your horse's gut needs steady day-to-day support to stay comfortable and balanced.
It provides aromatic oily herbs that help discourage everyday unfriendlies, keeping the digestive environment calm and stable over time.
→ BiomeTonic is:
- for daily or alternate-day intestinal maintenance
- for horses who get girthy, cow-kicky, right-hind swishy
- to discourage unwanted pathogen/parasite overgrowth
→ BiomeTonic is not:
- a dysbiosis-correcting formula (use SiboCARE first)
- a gastric-ulcer blend (see UlsaTonic )
- a high-mucilage, “soothing repair” blend (see GutAminos )
- suitable during active gut pain, fever, diarrhoea, or infection
Which blend - BiomeTonic, LeakyGutCOMBO or SiboCARE?
Each supports a different stage of gut recovery and resilience:
→ BiomeTonic
Maintenance | Microbial balance | Belly comfort
For maintaining microbial balance once stability is achieved.
→ SiboCARE
Active dysbiosis | Gas & bloating | Microbial overgrowth reset
For the unstable gut environment - gas, bloat, right-hind pain, post-antibiotics instability.
→ LeakyGutCOMBO
Faecal water | Mucosal nourishment | Gut-lining support
For chronic leaky gut/faecal water.
| IF YOUR HORSE… | BEST CHOICE |
|---|---|
| Gets belly-sensitive, girthy, flinchy, or right-hind swishy | BiomeTonic |
| Needs proactive microbial balancing | BiomeTonic |
| Reacts to grass changes or haylage on/off | BiomeTonic |
| Shows signs of microbial imbalance, gas, bloat, or SIBO-pattern discomfort | SiboCARE |
| Has faecal water, or needs gut-lining nutritional support | LeakyGutCOMBO |
| Needs a full reset after dysbiosis → then mucosal nourishment | SiboCARE → LeakyGutCOMBO |
| Needs long-term biome resilience after recovery | BiomeTonic |
Composition, Energetics & Feed Guide
Each herb in BiomeTonic plays a targeted role in supporting a balanced, comfortable digestive system.
BiomeTonic is a nutritional food supplement and not veterinary medicine. For more on this, see Dr Kellon's article - Nutrition is not 'Alternative' Therapy
.
Composition Glossary
- Matricaria recutita – Calming base herb; protects gut lining, relaxes tension, buffers stronger aromatics.
- Origanum vulgare – Rich in carvacrol and thymol, disrupts pathogenic microbes while respecting beneficial flora.
- Tabebuia impetiginosa – Inner bark high in naphthoquinones, traditionally used to keep fungal and microbial populations in check.
- Salvia rosmarinus – Antioxidant-rich herb for the gut–liver axis.
- Salvia officinalis – Astringent tonic helping stabilise microbial populations and digestive tone.
- Thymus vulgaris – Warming aromatic digestive tonic supporting intestinal balance, motility, and microbial harmony.
Energetic Architecture - how the blend works
- Aromatic microbial balancers(Origanum, Thymus, Salvia officinalis)
Provide steady support against pathogen and parasite overgrowth, discouraging dysbiosis. - Buffering & comfort support(Matricaria)
Protects the mucosa, calms irritation. - Deeper resilience(Pau d’Arco, Rosemary)
Supports deeper microbial balance, antioxidant protection, and gut–liver pathway.
Feed Guide
🌿Dried Herb Blend
Produced to ecological standards and free from agro-chemicals. See our Quality page for for Organic Certification Documents.
- Feed 5g/100kg bodyweight per day. i.e. 25g daily for a 500kg horse.
- 1 level 75ml scoop = 16-grams.
Fussy Eater?
Horses sometimes have their own opinions (and strong tastebuds!), so introduce gradually, building up over several days. See our Fussy Eaters guide for helpful tips if needed.
♻️ Eco Note: Our packaging is recyclable and refillable.
Clinical Considerations / Veterinary Reference
- If your horse has hindgut dysbiosis, see our first.
- If your horse already has onset leaky gut, then the intestinal environment needs stabilising first. See
Advisory
- Always ensure the forage foundations are in place - feed alongside fibre-rich, low-NSC forage.
- Not suitable during acute infection or fever.
- For right-hind gut pain or strong dysbiosis, use SiboCARE first.
- For faecal water or mucosal fragility, use LeakyGutCOMBO or contact us for guidance.
Contraindications
- Not suitable for pregnant or nursing mares due to the natural aromatic and cleansing activity of the herbs.
- Avoid concurrent use with anticoagulant medications.
- Not advised for horses during active ulcer flare-ups.
Veterinary Reference / Formulary Extract
A concise, vet-friendly reference is available for sharing with your vet.
The Story Behind BiomeTonic
From Carol Moreton, Founder of EquiNatural
BiomeTonic was originally formulated for one unforgettable horse - Mac, affectionately (and accurately) known as MacAttack.
Mac had a gut so reactive that reaching under his belly to fasten his sweet-itch rug was a genuine hazard. One wrong move and he’d cow-kick with the accuracy of a guided missile.
It wasn’t behaviour or attitude - I didn't know it at the time but in 2021, when I studied the KPU disorder with Dr Christina Fritz, I learned that this was a pure gut-driven pain reaction.
For 15-months we took MacAttack through the KPU reset programme, and when we finally got him stable, I needed a way to keep him that way - gently, daily, without suppressing anything his gut needed to express.
That’s where the oily herbs came in. BiomeTonic became the blend that meant I could finally reach under Mac again to do up his sweet itch rug without risking losing my arm.
It kept his gut comfortable, his mood softer, and his whole system more resilient, eventually getting him to where he only needed it every couple of weeks as a preventative.
If your horse is a little “MacAttack” at times, BiomeTonic was made for them.
© EquiNatural 2026. All content is original work protected under copyright, and may not be re-published, duplicated, or rewritten for commercial use without permission.
