Skin tone is modifiable, within some limits. If you maintain a base tan (equivalent to 2 hours in the sun or 10 minutes in a "standard" tanning bed, per week),

Skin tone is modifiable, within some limits. If you maintain a base tan (equivalent to 2 hours in the sun or 10 minutes in a "standard" tanning bed, per week), the melanin is highly photoprotective for any additional UV exposure.