La Mer is a luxury skincare brand known for its high-end products that use marine-based ingredients. Their most popular product is the "Crème de la Mer" moisturizer, which has gained a cult following for its ability to hydrate and smooth the skin.
The La Mer logo features a font that closely resembles Bodoni TS Light, a typeface created by Giambattista Bodoni. The Bodoni TS font is a commercially available typeface and more information can be found here