The vitamin C serum for the five minutes before work

Some mornings the bathroom shelf only has room for one bottle. This is a vitamin C serum with 15% THD Ascorbate, listed for all skin types, and it is described as brightening, clarifying and antioxidant. Here is what the listing says and what it leaves out.

The main ingredient is vitamin C in the form of 15% THD Ascorbate. The listing says it offers visible brightening, clarifying and antioxidant properties, and that it helps fight the first signs of aging caused by stress, lifestyle, sun and pollution. Those are the listing’s claims, not measured results.

Alongside it sits a Phytosterols Complex, isolated from soybeans and containing at least 40 percent beta sitosterol. The listing says it helps reduce the look of redness and skin sensitivity.

The listing says the serum suits all skin types. It does not state the bottle size, the price, the texture, the scent or how often to apply it. Whether it earns a place on a small shelf is a matter of routine and budget, not something the specification can settle.