Fillers, SPF, and skincare routines can fool a face photo. Hands tell the unfiltered story. Upload yours and discover your true biological age — then see the gap against your face.
Dermatologists have used hand appearance for biological age estimation for decades. The back of the hand reveals what the face conceals — because most people invest in facial SPF, retinol, and moisturiser while completely neglecting their hands. The result is a measurable gap between face age and hand age that reflects years of differential care.
Research published in Experimental Dermatology found that AI models trained on dorsal hand images can estimate biological age with a mean error of just 4.7 years — comparable to facial image analysis at 4.1 years. The key markers are skin texture and surface lines, vein and tendon prominence as subcutaneous fat decreases, solar lentigines from cumulative UV exposure, collagen density and skin elasticity, and nail condition as a systemic health indicator.
HandScan AI assesses all five marker categories from a single hand photo. The free scan returns your biological age estimate, a skin grade, and your top aging signals. For the complete picture — 20+ markers, nail health analysis, vascular indicators, and a 90-day personalised routine — the full biometric report goes deeper than any consumer tool currently available. Learn more about the science →
Upload a photo of the back of your hand to HandScan AI and get your biological age estimate in 15 seconds. The AI assesses skin texture, vein prominence, pigmentation, collagen indicators, and nail condition to produce a result comparable in accuracy to dermatologist assessment.
Yes — and with high accuracy. Research shows AI models can estimate biological age from hand photos with a mean error of 4.7 years. HandScan AI uses the same dermatological markers clinicians use: skin texture, sun damage, collagen loss, vein prominence, and elasticity.
Two reasons. First, hand skin is approximately 30% thinner than facial skin and has less protective subcutaneous fat. Second, most people apply SPF and moisturiser to their face daily but rarely to their hands — so hands accumulate UV damage year after year without protection. The combination accelerates visible aging significantly.
Most people who maintain a facial skincare routine but neglect their hands show a gap of 5–15 years — their hands look significantly older than their face. HandScan AI's gap report measures this precisely by comparing your hand scan against a face photo you upload. The gap number is often the most motivating result.
The three highest-impact interventions are: daily SPF 50 on the back of both hands (UV is the primary driver of hand aging), retinol hand cream at night (stimulates collagen, fades spots), and Vitamin C serum in the morning (brightens existing pigmentation). Consistent use for 90 days produces measurable results. HandScan AI provides a personalised product plan based on your specific scan results.
Yes — the basic scan is completely free with no signup required. Upload a hand photo, get your biological age estimate, skin grade, nail health reading, and three personalised product recommendations instantly. The optional $9.99 Full Biometric Report goes deeper with 20+ markers, vascular analysis, lifestyle signals, and a 90-day morning and evening routine.