Near-infrared
850 nm · Acts on: hypodermis
Per its manualInvisible to the eye, it penetrates the deeper layers of the skin. It stimulates collagen and improves the look of the lips from within.
2 Studies 1 Press
At doses similar to everyday sun, it may benefit skin more than harm it.
What is known
- One controlled study linked repeated sessions with higher measured collagen density.
- Many advertised uses are still at an early stage of study.
What is not clear yet
Optimal wavelengths and doses remain unresolved, and many commercial products may not reach a therapeutic dose.
Publications about the technology in general: they do not mention Eternas or endorse its products. Summary made with AI from them.







