Block & White Intensive Whitening Lotion with SPF24/PA+ Whitening Lotion allows maximum protection from the harmful rays of the sun that can last for up to two hours. Long lasting enough so you won’t be applying lotion time after time, thus, it saves the effort and cost. You would be worrying no more because this lotion can help you aid your whitening regimen. It is also a fine combination for those who use whitening soaps. PA+ can protect the skin against UVA rays which is believed to be the major cause of skin darkening.