Preventive vs. corrective wrinkle care: which do you need?

Dynamic lines, static lines

Clinicians split wrinkles into dynamic rhytids, the lines that appear when muscles contract, and static rhytids, the ones present even at rest. Every static line began as a dynamic one: the same expression folding the same crease thousands of times a year, until collagen loss lets the fold stay. The whole logic of preventive treatment is to interrupt that repetition before the crease etches in.

The test is simple enough to do in a mirror. Make the expression, release it, and watch. Lines that vanish immediately are still dynamic. Lines that linger, or never fully leave, have started the transition.

What the dose difference buys

Preventive care at 25 to 35 units uses lighter dosing to quiet the strongest repetitive movements while leaving your expressions intact. The goal is not a frozen forehead; it is turning down the mechanical repetition that turns motion into permanent lines.

Corrective care at 35 to 55 units treats lines that have already established themselves. The higher range reflects more territory and more entrenched movement patterns, and it pairs dosing with placement chosen for your facial balance. Deeply etched static lines may also benefit from regenerative support alongside, since a line carved into thinned skin involves the skin itself, not just the muscle beneath it.

Refreshed, never frozen

Whichever side of the line you are on, the dosing philosophy is the same: Marie maps your muscle movement and facial balance and doses to preserve expression. The result should read as a rested version of your face, not a still one. If you have seen frozen results elsewhere, that was a dosing and placement choice, not an inevitability of the treatment.