Is your fingerprint truly unique? Can twins be distinguished? Does it change after skin peeling? Let’s answer these questions once and for all.

The answer is yes. The fingerprint is a lifelong, essentially stable unique identifier.

The uniqueness of fingerprints comes from their formation process.
Between the 10th and 15th weeks of fetal development, fingerprints begin to form. Genes determine the basic pattern type, but the detailed ridge paths, bifurcations, endpoints, and pore distributions are influenced by random factors such as amniotic fluid pressure and fetal movement. Even identical twins, who share the same genes, have completely different fingerprint minutiae due to their different positions in the womb – this is the scientific basis of “uniqueness.”

Daily peeling does not change fingerprints; only deep injuries do.
Many people worry: does finger peeling or shedding affect fingerprints? The answer is no. Fingerprints are located between the epidermis and dermis. Superficial peeling, hand washing, or minor abrasions only affect the epidermis – the fingerprint will fully recover as the skin regenerates, remaining unchanged.
Only when the damage reaches the dermis (e.g., deep burns, severe cuts) can the fingerprint pattern be permanently altered. Such cases are extremely rare and do not undermine the reliability of fingerprints as everyday identity credentials. So, “unchanged for life” is the norm; “change” is an exceptional outlier.

Why do some devices fail to recognize you?
The problem is not with your fingerprint – it’s with the technology. Ordinary chips have limited resolution, capturing only the rough pattern and missing many minutiae. Moreover, they cannot detect liveness, allowing silicone fakes or conductive rubber to fool them.

Chipsailing’s glass‑based fingerprint sensor features 1600×1500 ultra‑high resolution, capturing even sweat pores with clarity – dozens of minutiae points per fingerprint. At the same time, its infrared liveness detection technology detects subcutaneous life signals (such as blood flow) to ensure the finger is real. Fake fingerprints (gel, conductive silicone, etc.) lack these life signals and are instantly rejected.

Every fingerprint is a unique mark that life leaves on the world. Chipsailing lets that uniqueness be seen and protected.