Hauls, shows, stalls, or gets girthy and cranky? Outlast® — gastric comfort.

In training and slow to muscle up or recover? SuperSport® — amino acids.

Hard keeper, sale prep, or heavy work? Amplify® — 30% fat, concentrated calories.

Lives on hay or pasture with no grain? Free Balance® 12:12 — the missing vitamins and minerals.

Sweats hard, travels, or won’t drink away from home? RepleniMash® — electrolytes and hydration.

Still unsure? Ask us at the store — it’s the kind of question we answer all day.

Often, yes — they’re built for different systems, and common pairings make sense: Outlast for the stomach plus Amplify for weight, or SuperSport through training with RepleniMash after hard work. Free Balance is the exception to stack carefully — it’s designed for forage-only diets, and a horse already on a full ration is usually covered for minerals. Tell us your horse’s program and we’ll help you avoid paying for the same nutrient twice.

No — and it’s worth being straight about. Outlast® is a nutritional supplement that supports gastric health and comfort; it doesn’t diagnose or treat disease. If you suspect ulcers — sudden weight loss, repeated colic, real pain — that’s a call to your veterinarian first. Where Outlast fits is the day-to-day: supporting a healthy gastric environment in horses whose lifestyle makes trouble likely, and ongoing support after your vet has done their part.

Outlast: with meals 2–4 servings a day, plus a serving 30–60 minutes before trailering, riding or other stress.
SuperSport: daily alongside training — the research feeding was every day, not just work days.
Amplify: daily; start about 60 days before the competition or breeding season and build up gradually to at most 4 lb.
Free Balance: 2 oz once daily on feed, or free-choice in a covered tub.
RepleniMash: after work, after the trailer, or in hot weather — mixed 32 oz of water per pound and soaked into a mash.

Purina prints a serving count on most of these bags: Outlast 90+ servings, Amplify 50+ servings, RepleniMash 25 servings, and SuperSport is labelled a 50-day supply. At the published rates for a 1,000 lb horse that works out to roughly: Outlast (40 lb) about 40 days at 3 one-cup servings · SuperSport (25 lb) 50 days · Amplify (50 lb) 50 days at 1 lb/day, less in heavy use · Free Balance (25 lb) about 200 days at 2 oz · RepleniMash (25 lb) 12–25 days depending on how often you mash. That puts the line between about 24¢ and $1.50 a day.

These are the palatable end of the supplement world — no powders to hide. Outlast is a pellet most horses take like a treat (it also comes as Outlast® Horse Treats, 3.5 lb — $9.99, the no-scoop pre-trailer option). Free Balance granules are flavored for free-choice feeding, and RepleniMash is a soaked mash — typically the first bucket licked clean.

Yes — Purina builds the Outlast® system into several of its complete feeds, and every RepleniMash pound already carries a full Outlast serving. On our shelf right now: the EquiTub™ with ClariFly® puts free-choice gastric support (plus fly control) out on pasture, and Omega Match™ Ration Balancing Feed brings the fatty acids and antioxidants of fresh pasture into a balancer. If you’d rather feed one bag than two, ask us in store and we’ll match a feed to your horse’s program.

Like any feed change: gradually, over a week or so. Amplify has the most explicit ramp in its directions — start at ½ lb a day and add another ½ lb every two days — but the same habit serves every bag on this page. And keep the forage foundation: Purina’s directions assume at least 1–1.2 lb of hay or pasture per 100 lb of body weight daily.