This Clarified Lean Medium by Chelsea Classical Studios is a handmade oil medium that uses lavender spike oil essence, which is a safer alternative to ones made with turpentine. It decreases drying time and thins paint.

This Lean Medium is crafted from a mixture of pure, extra-pale, cold pressed linseed oil and lavender spike oil essence. The oil is cold-pressed, purified and de-yellowed by traditional, natural processes that strive to make the palest, cleanest pure linseed oil for artists to use. The Oil of Spike Lavender Solvent is made from distilled lavender which is a clean, safe to breathe solvent with a strong sweet smell.

A 'Lean' Medium refers to the 'Fat Over Lean' technique, which means to apply a paint layer rich in oil (a fat) over a layer with less oil (a lean) layer on a painting. This principle is fundamental to controlling the paint adhesion, drying time and glossiness of oil colors. You can read more about this technique here .

This fine-art quality medium has a light oil content mixed with a varnish, so it will thin the paint, make it dry faster, and is recommended for the early layers of painting.