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Independent·Affiliate-disclosed·Spec-verified·Updated June 27, 2026
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Head-to-head buyer guide

La Petite Labs Hollywood Elixir Longevity System vs Leap Years Cellular Health System

Specs, prices, editor verdict, and who should buy which - compared side-by-side.

By Ryan · Founder
Published May 3, 2026
Quick verdict

La Petite Labs Hollywood Elixir Longevity System (premium, $89–$379) vs Leap Years Cellular Health System (premium, $31–$117/mo) - different tools for different jobs (see the per-product details below).

Compared on 0 shared specs · same category (pets).

La Petite Labs Hollywood Elixir Longevity System pet supplement sachet box
La Petite Labs

Hollywood Elixir Longevity System

Most pet supplements are a scoop of glucosamine and a marketing promise. Hollywood Elixir is the rare one that reads like a longevity stack built for a dog or cat: NAD+ precursor, glutathione, CoQ10, and a stack of polyphenols in a single daily sachet.

PRICE
$89–$379
View at La Petite Labs
Leap Years Cellular Health System bottle with beef-flavored soft chews for dogs
Leap Years

Cellular Health System

Leap Years is the rare dog longevity supplement with an actual published trial behind it, not just NAD buzzwords. It pairs a daily NAD booster with a twice-monthly senolytic chew, and it is honest about what it is: cellular-health support, not a promise of extra years.

PRICE
$31–$117/mo
View at Leap Years
The verdict

These are close picks. Both score in the same range. The right call depends on buyer profile - read the per-buyer recommendations below.

Who should buy which

Pick the La Petite Labs Hollywood Elixir Longevity System if

Owners of a healthy adult or senior dog or cat who already buy clean, third-party-tested supplements and want a single daily NAD+ and antioxidant routine instead of assembling one ingredient at a time.

Skip if

You want proven, vet-prescribed treatment for a specific condition, you are price-sensitive, or you need a product that is in stock today.

Pick the Leap Years Cellular Health System if

Owners of adult or senior dogs who want the most research-backed pet-longevity supplement available and are comfortable with a premium monthly subscription.

Skip if

You have a puppy, you want proven lifespan extension rather than early-stage cellular-health support, or a $30 to $117 monthly cost is more than the experiment is worth to you.

Go deeper

FULL REVIEW
Read the La Petite Labs Hollywood Elixir Longevity System review →
FULL REVIEW
Read the Leap Years Cellular Health System review →