An ampoule cure can work wonders at the transition from winter to summer. The high concentration of active ingredients helps to deeply moisturise the complexion. This also optimally prepares the skin for the sun, because a well moisturized skin tans faster and also more evenly.
You can also prepare your skin for the sun from the inside out with beta-carotene, lycopene, vitamins C and E, selenium, zinc and calcium. Especially beta-carotene, which is also available as capsules, should be taken long before the actual exposure to the sun.