PSSMFLEX SUBSCRIPTION - SAVE 10% *Targeted nutritional support for muscle comfort and flexibility
A targeted support blend to gently help horses prone to muscle tension, stiffness, or tying up – especially those with PSSM.
For horses dealing with muscle pain, reluctance to move, exercise intolerance, or the challenges of polysaccharide storage myopathy, this simple but effective blend combines three key ingredients to nourish and support healthy muscle function, cellular energy, and recovery.
✨ “I can really feel a difference in his movement. Hes striding out under saddle straight away, before we would have to really encourage lateral work before getting this kind of movement."
Overview
When muscle metabolism goes wrong, it’s not just performance that suffers – it’s comfort, confidence, and quality of life.
PSSMFlex provides gentle, functional support where it's most needed:
- Cramp Bark (powder) – nature’s classic choice to relax smooth muscle tension, ease spasms, and soothe sore, tight tissues.
- Acetyl L-Carnitine – a bioavailable amino acid compound that helps shuttle fatty acids into muscle cells for efficient fuel production, aiding energy metabolism and recovery.
- L Glutamine - the most abundant amino acid in muscle tissue that supports muscle repair, and resilience after exercise or stress. We formulate with N-Acetyl L Glutamine because it's the water-soluble form of Glutamine; all digestive enzymes are water-soluble, hence allows for more efficient digestion and therefore swifter bioavailability (time taken to absorb into the bloodstream).
No fillers, no fluff – just clean support for muscle metabolism from the inside out.
For our comprehensive guide to PSSM, see our main
A-Z Equine Condition/PSSM
page in the Advice Centre above.
Composition & Feed Guide
PSSMFlex is a nutritional, functional food supplement and not veterinary medicine. See Dr Kellon's Horse Sense - Nutrition is not 'Alternative' Therapy .
Feed
5g/100kg bodyweight per day, i.e. 25g for a 500kg horse.
- 1 level 15ml scoop = 10-grams.
- Want a scoop? You can add a scoop to your basket during checkout.
- Supplied in a resealable, food-grade foil pouch for freshness.
- Amino acids manufactured to ISO, BP, USP & EP requirements and/or food grade specifications.
- NB. Each ingredient is available separately - links above in Overview.
Composition
L Glutamine, Acetyl L-Carnitine, & Viburnum Opulus (Cramp Bark)
Footnotes
- Recommended to feed on an ongoing basis.
- Pregnant or nursing mares - always seek veterinary advice before feeding.
- ♻️ Eco Note: Our packaging is recyclable and refillable.
- 🧊 Storage Tip: Keep cool and dry.
Important Note
This blend is not a substitute for a low-starch, high-forage diet or responsible exercise management – it’s designed to complement a holistic PSSM support plan. Always introduce gradually and monitor your horse’s response.
Contraindications
Not recommended for pregnant mares or horses on anticoagulant medications due to Cramp Bark’s natural blood-thinning properties.
