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Immune Support
gut defense
respiratory health
Your cat acts unbothered. Their immune system? Not so much. L-Lysine is the one amino acid cats can't make on their own — and without it, a super common feline virus turns into chronic sneezing, goopy eyes, and general sad cat vibes. One scoop over their food and they're back to judging you from across the room.
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FHV-1 shows up in the same patterns. If your cat has any of these, L-Lysine may help.
These aren't just signs of aging — they're signs that your cat's immune system, inflammatory response, and gut health could all use a little extra support. That's exactly what Daybreak was formulated for.
As cats age, their immune system becomes less efficient at suppressing dormant viruses like FHV-1. Inflammation — in airways, joints, and the gut
— becomes more prevalent. And the gut microbiome, which plays a central role in immune regulation, becomes more fragile. A high-quality L-Lysine supplement addresses all three. L-Lysine supports immune function and viral suppression.
Krill Omega-3 reduces chronic inflammation — the kind that shows up as joint stiffness, dull coat, and respiratory discomfort. And FOS Prebiotic keeps the gut microbiome healthy so the immune system has the foundation it needs.This is why we hear from so many senior cat owners specifically: the multi-ingredient formula addresses the full picture of aging cat health, not just one symptom.
Most lysine supplements contain one ingredient. Daybreak contains four — because FHV-1 affects more than one system in your cat's body.
As cats age, dormant FHV-1 becomes more likely to flare up — immune surveillance weakens. Daily L-Lysine maintains the amino acid balance that keeps viral replication suppressed, reducing the frequency of respiratory flare-ups in senior cats.
Senior cats frequently develop digestive sensitivity. FOS (fructooligosaccharide) feeds the beneficial bacteria that regulate digestion and support immune function — helping senior cats maintain microbiome health that naturally declines with age.
Omega-3 EPA/DHA reduces chronic systemic inflammation — the mechanism behind joint stiffness, dull coat, and respiratory discomfort in aging cats. Krill oil is more bioavailable than plant-based omega-3 sources.
N,N-Dimethylglycine supports energy metabolism and immune modulation. Helps aging cats maintain energy levels and immune responsiveness without overstimulating the inflammatory response.
Real ingredients
MAnufactured IN THE USA
NO FILLERS OR JUNK
Non gmo
"The stuff the vet wanted to give me had 400mg of L-Lysine less and was $50 more." — Verified Amazon Purchase
Your cat begins eating the powder in wet food. Palatability confirmed. No visible change yet — completely normal.
Many owners report first improvements in eye discharge and sneezing. Immune support has begun building.
Consistent daily use builds up. Most cats show meaningful symptom reduction. Energy often improves noticeably.
Maintenance phase. Daily use suppresses flare-up frequency — many cats go months without a visible episode.
Join thousands of cat owners who've made Daybreak L-Lysine part of their daily routine. 60 servings. One scoop. Results most owners notice within the first week.
