Thymogen
1 mg2 amino acids · E-W
Supports a balanced, well-regulated immune response.
Glu-Trp — a dipeptide first identified in thymus extract, studied as an immune-signaling molecule.
Plus
Immune Plus
Thymogen 1 mg
Thymogen is a two–amino-acid immune messenger. Immune Plus supports a balanced immune response through boarding season, pollen season and everything in between.
- Supports a balanced immune response
- Helps maintain seasonal resilience
- Supports healthy skin defenses
FlavorChicken
- Free shipping over $50
- 60-day guarantee
- Vet-formulated
Each chew: Thymogen 1 mg. 60 chews per jar. Under 30 lb: ½ chew daily · 30–75 lb: 1 chew · over 75 lb: 1½ chews. Cats: follow the feline chart on the label.
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.
Dog parks, daycare, puddles, pollen. Their world is full of new encounters — Immune Plus helps keep their response balanced.
An immune year
Every season asks something different.
Tap a month to see what’s typically going on — and how to plan support around it.
QuieterBusyPeak
Mudroom moments
Built for real life, wet towels included.
Immune health isn’t one dramatic moment. It’s a thousand small encounters — the daycare pal, the muddy field, the new dog at the vet.
Immune Plus gives their natural defenses steady, daily support so they can keep saying yes to all of it.
What’s inside
One peptide, one job.
Each sequence is chosen for a specific role and dosed precisely — in micrograms and milligrams, not guesswork.
Thymogen
1 mg per chew2 amino acids · E-W
Supports a balanced, well-regulated immune response.
Glu-Trp — a dipeptide first identified in thymus extract, studied as an immune-signaling molecule.
- Dose1 mg
- Chews per jar60
- FlavorsChicken, Bacon, Beef
Glutamic acid · Tryptophan
What to expect
Support that builds, day by day.
Week 1
Start early
Begin a few weeks before boarding, travel or a busy season.
Weeks 2–4
Settle in
Daily support becomes part of the routine.
Weeks 4–8
Through the season
Keep dosing consistent through travel and busy months.
Ongoing
Year-round
Many owners keep Immune Plus going all year for steady support.
Reviews
4.8
963 verified reviews*
963 verified reviews*
“We started before her first kennel stay. Zero drama, happy pickup.”
“Spring used to be rough on his skin. This year has been calmer.”
“Easy to give, fair price, and I like that they publish their testing.”
Questions about Immune Plus
Can’t find it here? Visit the help center
Two to three weeks ahead gives daily support time to settle into the routine.
No. Supplements support healthy function; they never replace vaccines, parasite prevention or veterinary care.
Yes, with feline dosing. Cats that go outdoors or into boarding may benefit most.
Talk to your veterinarian about everything your pet takes so they can advise on the full routine.
Pairs well with
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