Bene-Bac&reg; Plus Probiotic Gel for Guinea Pigs, 15g Syringe, Safety Sealed Select your pet. No more guessing which gel to purchase. A concentration of 7 beneficial live-culture digestive bacteria. Easily digested for instant energy. Easy to use Dial-a-Dose syringe is "Safety-Sealed" with a carded backing to insure safe arrival. Encapsulated probiotics survive stomach acids to insure maximum results. 1-Year Date-Code Guarantee only from Nature's Horse! Made in the USA.