Slow start
Stiffness is often worst after a long rest.
Give a minute to stretch before the stairs.
Pro
Senior Pro
Cartalax 1 mg+Thymogen 1 mg
Cartalax for cartilage, Thymogen for immunity. Senior Pro supports the two things that matter most in the golden years.
- Supports joint cartilage in older dogs
- Supports a balanced immune response
- Helps maintain everyday mobility
FlavorBeef
- Free shipping over $50
- 60-day guarantee
- Vet-formulated
Each chew: Cartalax 1 mg, Thymogen 1 mg. 60 chews per jar. Under 30 lb: ½ chew daily · 30–75 lb: 1 chew · over 75 lb: 1½ chews. Formulated for dogs.
Offer as a treat or crumble over food, at the same meal each day. Scored to snap cleanly in half. Store sealed, below 25°C.
Ships in 1–2 business days. Free over $50. Not the right fit? Our 60-day guarantee covers your first jar.
Senior years are some of the best years. Senior Pro helps keep them moving, curious and well.
Old friends
Unhurried, and wonderful.
Older dogs teach us to slow down. Senior Pro is designed to make those slower walks comfortable ones.
One beef chew a day, two kinds of support.
A day at twelve
Small adjustments, big comfort.
Scroll through a senior dog’s day — and where support fits.
Breakfast + Senior Pro
The chew with breakfast makes it a habit.
Raised bowls can be easier on necks.
Sniff-walk
Shorter, slower, more sniffing — exercise for body and brain.
Two short walks beat one long one.
Long nap
Seniors sleep more. Supportive bedding matters.
Orthopedic beds away from drafts.
Gentle play
Short games keep joints moving and minds engaged.
Soft toys, low jumps.
Settle
Last toilet break and a calm bedtime routine.
Night lights help older eyes.
What’s inside
Two peptides, one chew.
Each sequence is chosen for a specific role and dosed precisely — in micrograms and milligrams, not guesswork.
Cartalax
1 mg3 amino acids · A-E-D
Supports cartilage for comfortable everyday movement.
A three–amino-acid bioregulator studied for signaling to cartilage cells.
Thymogen
1 mg2 amino acids · E-W
Supports a balanced immune response as pets age.
A dipeptide immune messenger.
What to expect
Support that builds, day by day.
Week 1
Start gently
Give with breakfast to anchor the routine.
Weeks 3–6
Easier mornings
Many owners notice smoother starts.
Weeks 6–12
Steady and well
Joint and immune support build over time.
Ongoing
Golden years
Made for daily, long-term senior use.
Reviews
4.8
1,116 verified reviews*
1,116 verified reviews*
“Clean labels, real dosing chart, actual COAs. This is how it should be done.”
“Our old girl is up for her morning walk again.”
“One chew instead of two separate jars — and she actually eats it.”
Questions about Senior Pro
Can’t find it here? Visit the help center
Roughly 7+ for most dogs, earlier for giant breeds. Your vet can help decide when to switch.
Yes. Many senior dogs do well on Senior Pro plus Mind Plus for cognitive support.
Ask your vet. Senior Pro supports healthy function and is often used alongside veterinary care.
Senior Pro is for dogs. For senior cats, consider Joint Plus or Vital Plus with feline dosing.
Pairs well with
Shop all formulas
Longevity Pro Plus$79/mo
Epitalon+Pinealon+Thymogen
Three peptides for aging well: mind, rhythm and immunity.