Packaging

Seasonly's primary packaging leans on glass. Glass is energy intensive to produce and heavier to ship, but it is endlessly recyclable and does not shed microplastics. Creams are sold in glass pump bottles and the face oils in glass dropper bottles. Secondary cartons are FSC certified, recycled, and recyclable, and the brand has them produced in France, a few hours from its Paris base, which shortens transport distances.

The company has also removed protective inserts from some cartons, dropped plastic from certain lines, and designed cartons that hold together by folding rather than glue, all of which cut material use and improve recyclability. The weaknesses are concrete. Pumps, droppers, and the eye serum applicator still rely on mixed plastic and metal components that are difficult to separate and recycle. 

Ingredient Sustainability

 Avocado oil, in the Night Oil, is linked to deforestation and heavy water use in producing regions, and Seasonly publishes nothing about where its avocado is grown or whether it is certified. 

Soybean oil, in the TensioLift Oil, is a leading driver of monoculture expansion and deforestation unless certified responsibly sourced, which is not indicated. Marula, also in the TensioLift Oil, is moderately sustainable when wild-collected from sub-Saharan trees but is under growing harvesting pressure, so community-verified sourcing matters and is not evidenced here. Sweet almond, present in two of the oils, is notoriously water intensive.

Most striking from an ecological standpoint are the marine-derived ingredients. The Fluid Cream contains Lithothamnion calcareum, or maerl, a slow-growing red coralline alga whose extraction is ecologically damaging and restricted in several jurisdictions, alongside Chondrus crispus, while the TensioLift Oil uses Padina pavonica. Seaweed and algae can be low impact when farmed but harmful when wild-harvested, and no farming or traceability claim is made for any of them. The brand markets heavily on plant-derived content, citing a stated minimum of 95 percent plant-derived ingredients, and on vegan formulation, but it carries no ingredient sustainability certifications such as organic, COSMOS, Fair Trade, or RSPO.

Energy Use and Carbon Footprint

Seasonly's clearest emissions-related decision is to formulate in its own laboratory in the Paris region and to produce its secondary packaging in France, which it cites explicitly as a way to limit transport impact. Keeping production close to its main market does avoid the long supply chains and air freight that inflate footprints, and as a small operation its absolute emissions are likely modest.

Beyond that, there is little to assess. We found no greenhouse gas measurement or reporting, no carbon neutrality or offsetting claims, no disclosure of renewable energy use at its laboratory or manufacturing sites, and no third-party verification of any of the above.

Waste Management

 It has reduced packaging material by removing inserts and eliminating glue in some cartons, offers a refill for its eye serum with a reusable applicator tip, and states that it is developing further refill systems. Its product philosophy, which favours multi-function products over long routines, also tends to reduce overall consumption and waste. As a small operation, its production waste is inherently limited, which we weigh favourably given that small brands rarely have large-scale waste infrastructure.

Business Model

Seasonly's core range is largely evergreen: a relatively compact catalogue of cleansers, serums, oils, creams, eye care, and reusable massage tools, marketed around long-term routines and a subscription rather than disposable trend products. The brand explicitly argues for fewer, multi-function products over large collections, which works against overconsumption.

There are countervailing signals, including a steady cadence of launches such as the TensioLift line, the boosters, and seasonal “treatment of the moment” offers, alongside promotional mechanics such as free-delivery thresholds, gift sets, and free samples, and seasonal marketing pushes.