Quest Diagnostics now offers a $29 biological age test add-on through 2,000 US locations, providing a single metric that measures functional aging independent of chronological age. The test breaks results by physiological system and tracks changes over time, leveraging an epigenetic model trained on over 306,000 participants and published in peer-reviewed research.
Key Points
- Biological age test available as $29 Quest add-on across 2,000 US locations
- Model trained on 306,000+ participants, published in Communications Biology
- 83% of users report intent to change health behaviors based on results
Longevity Analysis
Access to biological age measurement through mainstream clinical infrastructure removes friction from preventive assessment. The shift from novelty to routine lab offering signals institutional recognition that functional capacity—not chronological time—drives healthspan outcomes. Longitudinal tracking within a single platform enables users to decode whether interventions are actually slowing or reversing the rate at which their organ systems, immune function, hormonal balance, and regenerative capacity are declining relative to age-matched peers. The high reported intention to act on results points to a gap that measurable feedback can close: people often have normal lab panels but lack data that connects those numbers to their actual aging trajectory.
Original published by Longevity.Technology, by Kyle Umipig.