13°S Starter + Refill Duo

Your 180-Day Ritual. One Decision.

Start with the 13°S Cellular Serum Glass Bottle, then seamlessly continue with the Pump-Swap Refill — same formula, zero waste. The Duo gives you 180 days of your complete morning ritual, delivered together and ready to go.

• 1x 13°S Cellular Serum Glass Bottle (30ml)
• 1x 13°S Cellular Serum Pump-Swap Refill (30ml)
• 180-Day Serum Ritual
• Free Express Post Shipping
• First additional Refill 20% Off — code sent to your inbox after purchase

Why the Duo?

The 13°S Cellular Serum works progressively — cellular repair and barrier restoration compound over time. Committing to 180 days is where the real transformation happens. The Duo removes the decision point and saves you $30 in the process.

Order With Confidence

• Free Express Post Shipping — Dispatched same or next business day via Australia Post.
• First Refill 20% Off — A 20% discount code for your next refill is sent to your inbox after your order is confirmed.
• Not quite right? — Contact us and we’ll make it right. Your satisfaction is our priority.