This supplement is great; both of my dogs had a noticeable improvement in their playfulness and energy levels after 3-4 days of taking. The powder goes on easily and my two dogs; a 60 lb female German... See more
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Great Experience! The website made it easy to determine my pets needs and make an informaed decisiomn about his health supplement needs. Delivery was super fast and my black lab has been doing great o... See more
My dog is obsessed with this product! Matterdays is recommended to go in wet food, but I only give my dog dry food so I was unsure of how to apply. I just started sprinkling it on top and she scarfs i... See more
The cat longevity supplement space is thin, and most options are reactive rather than prevention-first. MD1 is different; it supports holistic healthy aging and works for cats. Luna has been on it... See more
Company details
Written by the company
Matterdays – Pet Longevity Matterdays is a science-driven pet health company focused on helping dogs and cats live longer, healthier lives. Our flagship product, MD1, is a daily longevity powder formulated to support six critical systems in the body — gut health, immune function, joints, heart health, cellular energy, and longevity pathways. Every batch is third-party tested for heavy metals and purity, and our formulations are developed alongside veterinary and nutritional experts. At Matterdays, we believe preventive care is the future of pet health. One simple daily ritual can help support the health of the companion who gives you their whole life.
Contact info
United States
- helllo@matterdays.md
- matterdays.md
4.7
Excellent
29 reviews
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Excellent Daily Wellness Supplement for Dogs
Our dog means the world to us, so I am very intentional about the products we use. What I appreciate most about Matterdays is the focus on transparency, thoughtful formulation, and long-term wellness. The ingredients feel carefully chosen and high quality. Even though our dog can be a bit picky, she takes it without any issue. It is reassuring to find a brand that approaches canine health with this level of care and integrity. I would absolutely recommend it to other dog owners who want the very best for their pets.
March 12, 2026
Unprompted review
My dogo loves the supplements and…
My dogo loves the supplements and seeing his fur got more soft and shiny after a month of use, also has lots of energy. Will keep this as his vitamin stack every day!
February 13, 2026
Great idea, great product
Great idea, great execution, great team. Didn’t know you needed it until you did. 10/10.
March 5, 2026
Unprompted review
This is great stuff
This is great stuff! Clean & efficient packaging & labeling, great to know it has nothing but good, natural ingredients, and my dog (who is a picky eater) absolutely loves it!
February 23, 2026
I’ve had a great experience with Matterdays
I’ve had a great experience with Matterdays for my French Bulldog. Since starting him on the product, I’ve noticed a big difference in his overall energy and daily activity. He seems more lively and happy throughout the day, which has been great to see.
Another thing that really stood out is that we haven’t had to visit the vet nearly as much since using it. As a Frenchie owner, you know they can sometimes have their fair share of health issues, so anything that helps keep them feeling good is a big win.
Overall, I’m really impressed with Matterdays and love seeing how much my dog enjoys it and benefits from it. Highly recommend to other dog owners!
February 11, 2026
Great Experience - Great product!
Great Experience! The website made it easy to determine my pets needs and make an informaed decisiomn about his health supplement needs. Delivery was super fast and my black lab has been doing great on it so far! Looking forward to seeing the positive results in the near future!
February 17, 2026
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