Insights

Saltbush: The Quiet Plant Behind Our Name
Saltbush: The Quiet Plant Behind Our Name
How a hardy, silver-leaved desert plant gave Saltbush & Clay its name, and why it has a place in the 13°S Cellular Serum. Read more...
30 Days of 13°S Cellular Serum
30 Days of 13°S Cellular Serum
Claire Provost reflects on the first month of 13°S: launching the serum, listening to questions and making room for clearer, more useful information. Read more...
Serum vs. Moisturiser: What’s the Real Difference (and How to Layer Them)?
Serum vs. Moisturiser: What’s the Real Difference (and How to Layer Them)?
Understand serum and moisturiser, where sunscreen fits, and how to layer your routine comfortably without unnecessary steps. Read more...
What to Expect in Your First 30 Days with the 13°S Cellular Serum
What to Expect in Your First 30 Days with the 13°S Cellular Serum
How to introduce the 13°S Cellular Serum into your routine, what to notice in your first month, and how far your bottle goes. Read more...
The Unglamorous Journey of a Luxurious Result: Inside Our Cellular Serum
The Unglamorous Journey of a Luxurious Result: Inside Our Cellular Serum
Ingredient preparation, formulation in Sydney and hand-finishing in the Noosa Hinterland: the practical work behind a simple daily serum ritual. Read more...
Unlocking the Plant Cell: The Science and Soul Behind Our Cellular Serum
Unlocking the Plant Cell: The Science and Soul Behind Our Cellular Serum
How Cellular Extraction™ draws out a plant's water-soluble compounds without heat, and why the extraction method shapes the finished formula. Read more...
The First Batch Has a Date — CS26-B01 Launches 10 August 2026
The First Batch Has a Date — CS26-B01 Launches 10 August 2026
From the launch archive: CS26-B01, the first 30ml Cellular Serum batch announced for 10 August 2026, and the milestone it marked for 13°S. Read more...
Why Kakadu Plum is Our Hero Ingredient
Why Kakadu Plum is Our Hero Ingredient
Why we chose Kakadu Plum, how its supporting ingredients fit the formula, and the Australian botanical character behind 13°S. Read more...
Mark Provost, founder Saltbush And Clay
Action Over Words
Founder Mark Provost has spent his life building things in places others overlooked. Saltbush & Clay is the latest: high-end Australian skincare made from potent native formulas. Read more...