Design & Developed by APPWRK
Skip to content
Free shipping • 30-Day Money-Back Guarantee

EVERY DAY MATTERS

An all in one blend to keep them by your side, feeling Healthy Resilient Playful

Discover MD1

Health is shaped by more than genetics.

Built for prevention, not repair.

Meet MD1

  • Immune Defense
  • Joint Mobility
  • Gut Health
  • Cognitive & Heart
  • Stress Resilience
  • Skin, Coat & Cellular Vitality
Get Started

Cellular Defense

Every cell has a lifespan. MD1 is formulated to extend it. Seventeen clinically studied actives. One daily ritual. Built for the years that matter most.

Immune Defense

Activates immune cells for stronger daily defense and long-term vitality.

Gut Health

Balances the microbiome for smoother digestion and nutrient absorption.

Joint Mobility

Cushions joints, reduces inflammation, and keeps movement smooth.

View All systems

Tested for the ones we love

 Non-GMO
Pesticide & Glysophate Screened
Microbial & Toxin Tested
Allergen Transparency
Heavy Metal Tested
3rd Party Tested
Our Quality Standards

Whats inside the scoop?

Every ingredient is chosen with purpose nothing extra or artificial. Just real bioavailable nutrients your pet can actually use.

Full ingredient list

Bone Broth

Pasture Raised

Green Lipped Mussel

Joint Support

Ashwagandha

KSM 66

Bovine Colostrum

Liposomal

Nicotinamide Riboside

Mitochondria Health

Maitake Mushroom

Fruiting Body

Proof Behind the Promise

Proof Behind the Promise

Clinically driven

Backed by ongoing veterinary-led trials to validate results.

Formulated by Dr. Jenna

A holistic vet uniting Eastern traditions with modern Western science.

Traceable Ingredients

Full sourcing transparency for every ingredient.

Sustainable by Design

Ocean Bound Plastic, refill-ready packaging.

Clinically driven

Backed by ongoing veterinary-led trials to validate results.

Formulated by Dr. Jenna

A holistic vet uniting Eastern traditions with modern Western science.

Traceable Ingredients

Full sourcing transparency for every ingredient.

Sustainable by Design

Ocean Bound Plastic, refill-ready packaging.

Vet-Created Longevity for Pets

Dr. Jenna Lenarz, DVM, MRCVS, is a UK-trained holistic veterinarian who has spent decades blending modern veterinary science with time-tested holistic therapies. After years in practice, she saw too many supplements overpromising and underdelivering — forcing pet parents to juggle multiple products with little real impact. Matterdays was created to change that. By uniting clinically studied ingredients with holistic wisdom, Dr. Jenna designed MD1 as the supplement she always wished existed: simple, science-backed, and truly effective in helping pets not just live longer, but live better

WHAT OWNERS SAY

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.

Jasmin

Shiba inu, 4 years

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!

Anton

Wirehaired Vizsla, 4 years

I noticed a clear improvement in energy and overall vitality, which aligns with their focus on science-backed, preventive pet health.

Shay L.

Golden Retriever, 6 years

To be honest, I wasn't sure what this would do for her, but after a few weeks she has more energy and her coat looks the best it ever has. I'm a believer!

William

Terrier mutt mixture, 4

1% OF EVERY ORDER HELPS BUILD A SAFER WORLD FOR PETS

Every purchase supports our mission to create peaceful sanctuary spaces for vulnerable pets — places where they can heal, feel safe, and receive the care they deserve.

Your pet’s daily ritual becomes hope for another.

Learn More