Demeter Kelp Cologne by Demeter, Launched in 2019, demeter kelp by demeter craftily blends the clean, green and savory smell of kelp with salty sea air. It makes one envision trapesing along an oceanside path, feeling the gentle breeze and inhaling the delightful aromas that mother nature has to offer. It tickles the nose with hints of sweetness, which subtly mix with earthy accords.