Remembering how much time you've spent in the sun can be difficult, especially if you are child. But even adults may sit out at the barbeque for too long, become engrossed in conversations on the porch, or even lie out reading a book for too long.

Setting a timer is a great way to ensure that you don't stay out too long and that you know when to reapply sunblock. Who wants to bother with that? No one really. But there is a device, a fashion accessory that does the trick.

There's a bracelet made of photosensitive plastic that turns purple when there has been too much sun exposure.

"We thought these would be a fun reminder to reapply sunblock or get out of the sun," said Urban Spa owner Susan Ternent.

Ms Ternent's spa will hold a fundraiser for melanoma on Sunday from 9 a.m. to 1 p.m. In those hours clients can have a haircut or a manicure for a minimum donation of $30.

"Our staff have donated their time so 100 percent of the money raised will be donated to Bermuda Cancer Centre," said Ms Ternent.

It's the first time the spa has held a skin cancer fundraiser. In the business of skin protection, Ms Ternent said supporting skin cancer awareness projects made sense.

"It's a nice fit for us and there is no fundraising for skin cancer on the Island," she said. "We read a lot about it in our trade magazines and that's what brought our attention to it," she added. "There are increased rates in skin cancer everywhere in the world, even in places that you do not think of as being sunny."

She said she felt children could be made to take better precaution if parents made a game out of the bracelets. "They can tell their children that when it turns pink it's time to get out of the sun, and then when it turns purple they've been out too long," she said.

In addition to having the bracelets for sale during the fundraiser, the spa will also feature Krista Rubin, a skin cancer nurse specialist with the melanoma clinic at Massachusetts General Hospital. Ms Rubin will be on hand to offer advice and answer any questions on skin cancer.

Ms Rubin is being hosted by The Bermuda Cancer Centre and will speak tomorrow night on 'Saving the Skin You're In'. She will focus on steps to take to prevent skin cancer.

As the specialist nurse in the melanoma clinic at Mass General she not only sees patients with malignant skin cancer daily, but also provides care and education to patients with a personal or family history of melanoma and other skin cancers.

Pauline Girling, marketing director of Bermuda Cancer Centre, said Ms Rubin's visit was especially important because she will be able to speak about the disease in layman's terms.

"We are very pleased to be hosting her and are excited about the message she can deliver," she said.

Ms Rubin's public talk is free tomorrow at 7 p.m. at the Bermuda Underwater Exploration Institute.