yes, summer in my country is very harsh, with heatwaves etc. and yes, sun and salt water will damage your hair. but... if you wash it thoroughly after the beach, and use Back2Natural Color Blender and Conditioner, you will be ensuring it stays as good as possible. But yes, I think that too much sun and salt water will damage ur unit at the end of the day.

I have 2 units (toplace) - one that I used to wear in summer, and this one. Ok so this is still quite new, but you can see, the other one (summer one) is quite dry and the color had faded away slightly. Still wearable, don't get me wrong, but if you had to compare, this one looks a lot more fresh!

But, again, my country's summer is unbearable - too much sun and heat. Plus, I only discover about Back2Natural in the last week or so... so I hadn't used it much.