The Truth About Avocado Oil in 2026
Everything you need to know about avocado oil in serums, soaps, lotions and body oils.: the science, the benefits, and the Marianella products that feature it.
Why Grapeseed Oil Belongs in Serums, Soaps, Lotions and Body Oils. (2026 Guide)
Everything you need to know about grapeseed oil in serums, soaps, lotions and body oils.: the science, the benefits, and the Marianella products that feature it.
Inside the Royal Kalahari Face Serum: What Makes It Different
An honest look at the Royal Kalahari Face Serum: an oil serum built on Kalahari melon seed oil, what it does and does not do, and how it compares with our other face formulas.
Using Peptides and Retinol in the Same Week
Peptides and retinol work well together when each gets its own nights. Here is a simple weekly plan, what to use in the mornings, and how long to give it.
Why Sugar Cane Extract Is in Our Vitamin C Serum
Sugar cane extract has one home in our range, the Vitamin C serum, where it helps skin hold water and gives the formula a fresh, soft feel.
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