Final answer:
The requirement that led to the increase in SPF value of sunscreen lotions in the Middle East is the need to provide more protection against UV radiation.
Step-by-step explanation:
The requirement that dictated the product adaptation of increasing the SPF value of sunscreen lotions in the Middle East is the need to provide more protection against UV radiation. Sunscreen products with higher SPF values offer greater protection against UVB rays, which are responsible for sunburn and skin damage. Increasing the SPF value helps to shield the skin from harmful UV radiation.