Serum and moisturiser can work together, but they are not simply lighter and heavier versions of the same product. Understanding their roles makes it easier to build a routine without unnecessary steps.
What does a serum do?
A serum is typically a lightweight formula designed around particular skincare goals. Depending on the formulation, those may include hydration, a more radiant appearance or skin comfort.
The word “serum” does not guarantee a high active concentration or deeper penetration. Its ingredients and the finished formula matter more than the category name.
What does a moisturiser do?
A moisturiser helps maintain hydration and comfort. Many combine ingredients that attract water with emollients that soften skin and occlusive ingredients that help reduce moisture loss.
Textures range from light lotions to richer creams. Choose according to your skin’s needs and the product’s directions, rather than assuming thicker is always better.
Do you need both?
Not every routine needs a serum. An extra step should serve a purpose for you, not simply fill a gap on the shelf.
The 13°S Cellular Serum is designed to cover brightening, hydration and barrier support in one step, so you don't need three separate products. It does not replace moisturiser or sunscreen, so follow it with moisturiser as directed.
A simple order
- Cleanse. Begin with clean skin.
- Apply serum. Use 3 drops: one on your forehead and one on each cheek. Smooth over your face and neck with clean hands.
- Follow with moisturiser. Let the serum settle, then apply moisturiser according to its directions.
- Finish with sunscreen in the morning. Follow its application and reapplication instructions.
At night, leave out the sunscreen step. Product-specific directions take priority over a general thinnest-to-thickest rule.
If the layers feel heavy or pill
Try a lighter hand and allow one layer to settle before adding the next. There is no universal waiting time that every formula needs.
If the combination still feels uncomfortable, simplify the routine and consider whether the products suit each other and your skin. More layers are not automatically more beneficial.
Starting the serum?
Read What to Expect in Your First 30 Days with the 13°S Cellular Serum for how to introduce it and what to look for.
Give each step a purpose. Keep the routine comfortable.
Discover 13°S Cellular Serum → · Complimentary shipping Australia-wide
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