Cassiel Pet immunity boosting review: the budget probiotic

The Cassiel Pet Immunity Boosting supplement combines probiotics with digestive and appetite support for dogs and cats. At around ₱109 it’s among the cheapest entries in this category, and it holds a 4.9 across several hundred owner ratings.

What does it do?

Daily general support: gut, immunity, and a nudge for pets that pick at their food. Cassiel Pet is already a familiar budget name on Shopee PH, and this sits alongside the brand’s other multivitamins.

That family resemblance is worth flagging. Cassiel’s range overlaps heavily, with several products naming probiotics, vitamins and appetite support in near-identical terms. Read the pack you’re actually buying rather than assuming they’re interchangeable, and don’t run two of them at once.

On appetite claims

Handle this one carefully. A supplement can reasonably make food more tempting for a pet that has always been a picky eater.

What it should never do is paper over a sudden loss of appetite. A pet that ate happily last week and won’t eat this week is telling you something, and in cats especially, going without food for even a couple of days is dangerous. That’s a vet call, not a supplement purchase.

Strain names and CFU counts aren’t published, as with almost everything in this category locally.

Is it worth it?

Around ₱109 as of August 3, 2026. Check the latest price on Shopee.

Cheap enough to try without much thought, and in a category where nearly nobody publishes strain data, paying several times more doesn’t reliably buy you a better-documented product. The strong rating across a decent number of owners is the most useful signal here.

Who should buy it

Buy this if you want everyday gut support for a dog or cat without committing much money, or if you’re supplementing several pets and cost per day matters. If your pet has a specific problem, a targeted product concentrates better. If the issue is a sudden change in eating or stool, see a vet first. See our top picks in the best pet vitamins roundup, or learn which supplement helps in our pet vitamins buying guide.

Alternatives to consider

Want the same low price from a brand with even more ratings behind it? The Cassiel Pet multivitamin with probiotics is the range’s best-known product. Feeding a dog and want a gut-focused chew instead? The Buddy probiotic chew 32-count pack is a cheap, very well-rated starting point.