Most items are formulated for dogs of all sizes and life stages. A few products are labeled for both cats and dogs. One liquid oil specifically notes use for puppies older than 12 weeks.
These supplements supply Omega-3 fatty acids (EPA and DHA). They’re described as supporting skin and coat health and are also noted for joint and heart health benefits.
Common targets include anxiety/calming, immune support, digestive/gut health, joint health, skin and coat support, and weight management.
Many listings describe products as highly palatable—terms like “tasty” or “pets love” appear frequently. Reviews often note strong acceptance for broths and oils. Some liquid toppers also emphasize human-grade or all‑natural formulations and added ingredients such as turmeric.