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Wavelength penetration depth

Light & Technology

What is wavelength penetration depth?

Wavelength penetration depth refers to how deeply different light wavelengths can travel into biological tissues.

In hair restoration therapy, red light at around 650 nm wavelength penetrates the epidermis and dermis layers effectively, reaching hair follicle structures without damaging deeper tissues.

Optimizing wavelength penetration depth ensures that therapeutic light energy reaches the intended targets — the scalp and follicular mitochondria — maximizing red light therapy effectiveness for hair growth stimulation.

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Medical-Grade Diodes

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