About Us

One ingredient. Properly dosed. Nothing to hide.

Onset started with a simple frustration: the supplement aisle is full of proprietary blends, underdosed “clinical” ingredients, and labels that read like a chemistry exam. We wanted the opposite — a product built around a single, well-researched compound, dosed at the amount actually used in the studies, and nothing else. That compound is Urolithin A.

Why Urolithin A

Urolithin A is a postbiotic your body can produce when gut bacteria break down compounds found in pomegranates and certain berries — but most people don’t make meaningful amounts on their own. It is one of the most studied longevity compounds of the last two decades, with research focused on cellular energy, strength, and recovery. We deliver 500mg per daily serving — the dose used in published research — in two strawberry-flavored gummies.

How we make it

  • Single-ingredient formula — no caffeine, stimulants, or proprietary blends
  • Third-party tested — every batch
  • Vegan & sugar-free
  • FDA GRAS status (Generally Recognised as Safe)
  • Made in a facility that follows strict quality standards

Who we are

Onset is operated by Seond Ltd., registered in Cyprus (Reg. No. HE 433247, VAT CY10433247L), Spyrou Kyprianou 16, 6058 Larnaca, Cyprus. We ship free, express, to the United States, United Kingdom, Canada, Australia and New Zealand, and back every order with a 90-day money-back guarantee — opened or unopened.

Talk to us

Questions before you buy? We are a real team and we answer.

Email: hello@tryonset.com
Phone: +1 213-720-6052
Hours: Monday–Friday, 9:00 AM–6:00 PM EST

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.