The greatest effects came from variations that included blue light (on the right side) and it would be minimal with heat lamps.
Ultraviolent light also affects nitric oxide levels. Based on what's shown above, the typical durations recommended for sunlight exposure would fall within the length needed to level out the effect from red light.
Red or infrared before blue light didn't lessen the impact of blue in isolation, but afterwards they did. It's only helpful that exposing the skin to longer wavelengths before ultraviolence can minimize damage:
Infrared and Skin: Friend or Foe