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VetriScience Vetri Lysine Plus for Cats by VetriScience
C73
PSI+

VetriScience Vetri Lysine Plus for Cats

VetriScience NASC Verifiedsoft chewFor cats

Vetri Lysine Plus combines L-Lysine, DMG, and Elderberry to support immune function and respiratory health in cats. Especially useful for cats prone to feline herpesvirus flare-ups.

About This Product

VetriScience Vetri Lysine Plus for Cats offers a convenient way to support your feline friend's immune health. This palatable soft chew is formulated to help maintain a healthy immune system, which is especially beneficial for cats in multi-cat households, those experiencing environmental stress, or kittens with developing immune systems. Each chew delivers a blend of key ingredients known for their supportive properties.

The primary active ingredient, L-Lysine, is an essential amino acid that plays a role in various bodily functions, including immune response. Dimethylglycine (DMG) further contributes to immune system function and overall well-being. Additionally, Elderberry Extract, a botanical ingredient, is included for its natural antioxidant properties, which can help protect cells from oxidative stress. These soft chews are designed for easy administration, making it simple to incorporate into your cat's daily routine.

VetriScience Vetri Lysine Plus for Cats has earned a PSI+ Grade of C (73.36/100), indicating a solid product within its category. This supplement is an excellent choice for pet owners looking to proactively support their cat's natural defenses and promote their overall vitality.

PSI+ Score Breakdown

Ingredient Adequacy100/100

Are key ingredients present at clinically effective doses based on veterinary research?

Formula Completeness41/100

Does the product include all expected ingredients for its supplement category?

Label Transparency100/100

Are individual ingredient amounts clearly disclosed without proprietary blends?

Ingredient Diversity40/100

Does the formula include a breadth of beneficial compounds from multiple pathways?

Strengths

  • + Excellent value (120 chews)
  • + NASC certified
  • + Targets feline herpesvirus
  • + Contains DMG for immune support
  • + Cats enjoy the taste

Weaknesses

  • - L-Lysine efficacy debated in recent studies
  • - Only 3 active ingredients
  • - Limited formula diversity
  • - Some cats refuse chews

Ingredient Analysis

IngredientAmountDose Adequacy
DMG (Dimethylglycine)50 mgadequate
L-Lysine250 mgadequate
Elderberry Extract25 mgadequate

Customer Voice Analysis

Aggregated from 8,200 reviews across Amazon, Walmart & iHerb

4.4

Avg Rating

86%

Verified Purchases

stable

Volume Trend

8,200

Total Reviews

Rating Distribution

1★2★3★4★5★

Sentiment Breakdown

Positive 68%
Neutral 22%
Negative 10%

Review Credibility Score

73/100

Good review quality

Review Authenticity Signals

Verified Purchase Ratio86%

Excellent — most reviewers actually purchased

Review Depth & Consistency73%

Good review volume and quality signals

Sentiment Themes

What Customers Love

Reduced eye discharge34.1%
Great value18.3%
Easy to give daily13.4%

Common Concerns

Didn't help with herpes flares7.3%
Cat won't eat them4.9%
Recent studies question L-Lysine3.7%

Product Info

Price$18.99
Per Serving$0.16
Serving Size1 bite-sized chew
Servings120