In all of these situations, the stratum corneum is temporarily thinner, making the skin
more vulnerable to ultraviolet radiation.
Bruising and oedema are common after many of these procedures and, by themselves,
represent a contraindication to sun exposure.
Laser Hair Removal
Laser hair removal should only be performed before the skin becomes tanned.
Otherwise, epidermal melanin absorbs part of the laser or intense pulsed light
(IPL) energy, increasing the risk of depigmented patches developing after treatment.
Fillers and Botulinum Toxin
Filler or botulinum toxin injections should ideally not be performed during the days
immediately preceding a boating holiday or before prolonged use of a diving mask.
Pressure from the diving mask, together with prolonged sun exposure, may compromise
the best possible aesthetic outcome.