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Longer Healthspan, Delivered.

Slowing the shortening of telomeres—the protective caps on our chromosomes—preserves cellular function and delays senescence, thereby extending healthspan by reducing the onset of age-related chronic diseases. AS4 the science of aging slower.


AS4 comes from our USA factory, tested and trusted for almost 50 years.

“Effectively delaying biological aging.” —AS4

What is AS4?

  • Derived from Astragalus Radix

  • Plant-based solution that can extend your health span

  • Can help slow shortening of our telomeres

AS4 is a telomere-targeting supplement that supports

long-term cellular health vitality.