• A tube of salt+blue BODY sunscreen in a vibrant blue aluminum tube with a tube key rolled at the top edge, styled on a woven straw hat and a bright teal picnic table with green leaves in the foreground.
  • A flat-lay product shot of the salt+blue METAL Tub Key alongside its navy blue packaging card and bright blue body sunscreen tube, arranged on a white marble surface.
  • A salt+blue METAL tube key shown with its brown kraft paper envelope and a dark blue card insert on a light beige background.
  • A minimalist zinc alloy METAL tube key featuring a circular disc head and a slim vertical prong pin design to slip aluminum tube into.
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Get Every Last Drop

Durable metal construction. Easy-roll design. Built for our aluminum tubes.

METAL Tube Key $4

Small enough to travel with your tube. Sturdy enough to last as long as it does.

  • Material: Zinc alloy
  • Finish: Metal, easy-roll design
  • Care: Wipe clean with a dry cloth
  1. Slide the key's slot onto the flat end of your sunscreen tube.
  2. Turn the key to gently roll the tube.
  3. Squeeze product as needed.
  4. Continue turning with each use as the tube empties, to get every last drop.
$4.00 USD
$4.00 USD
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Support Our Featured Ocean Conservation Partner

Throughout the year, we support select nonprofit organizations making a meaningful impact for our oceans. Your optional donation below goes directly to our current featured partner.

Chase the Sun. Cherish the Sea.

Thoughtfully Formulated for Skin and Ocean.

salt+blue started with a simple question: why is it so hard to find a sunscreen that's actually good? Good for your skin, good for the water you swim in, good enough to want to use every day. We're not interested in fear-based sun care. We're interested in making something you reach for because it works — and because it reflects the way you want to live.

At salt+blue, we believe in the profound connection between the skin, the sun, and the waters that sustain life. Our sunscreen is more than just protection — it's a promise. Intentionally formulated with organic and wildcrafted ingredients, it offers gentle care for your skin while safeguarding the health of our oceans. Every application reflects our dedication to being in harmony with the sun while preserving the beauty and balance of the planet.

Crafted with mineral-based ingredients, our products are free from harmful chemicals, honoring both your skin and the marine ecosystems we cherish. Transparency and sustainability guide every decision we make, from sourcing to packaging. Each formula is designed to nourish and protect, inspiring a collective commitment to preserve the planet and its delicate ecosystems.

Rooted in our passion for a healthier future, we source responsibly and with respect for nature’s cycles. Our process preserves the integrity and potency of every ingredient, creating products that resonate with life. salt+blue strives to make a ripple of impact — empowering individuals to embrace mindful choices that contribute to the greater good.

salt+blue is a testament to what’s possible when intention meets action. It’s our way of celebrating the interconnectedness of life, respecting the waters that give us so much, and ensuring their beauty and vitality endure for generations to come.

Why salt+blue Is Different:

  • In harmony with the sun – One that celebrates warmth, vitality, and balance rather than avoidance and overexposure.
  • No marine harm, ever – 100% reef-friendly and free from toxic chemical runoff
  • Pure, purposeful ingredients – mineral-based, organic, and wildcrafted for skin and planet
  • Sustainably sourced + packaged – every step respects nature's rhythm and resources
  • Gentle on skin, powerful in purpose – daily protection that nourishes while defending delicate ecosystems
  • Rooted in intention, driven by impact – sun care that supports a more mindful, connected future

Frequently Asked Questions

What is a metal tube key and how does it work?

A reusable tool that rolls and squeezes sunscreen from aluminum tubes. Simply slip the tube’s end into the key and twist to push the formula toward the opening.

How do I use the salt+blue METAL Tube Key?

Slide the sealed end of your sunscreen tube into the groove of the key, then turn the key as you use the product. This gradually rolls the tube and pushes the formula toward the opening.

Is the salt+blue METAL Tube Key reusable?

Yes. The METAL Tube Key can be reused from tube to tube.

Which salt+blue products can I use the Metal Tube Key with?

The METAL Tube Key is designed for use with salt+blue BODY sunscreen.