Tag: Skincare storage

Ascorbic acid is notoriously sensitive to heat, with one study noting that its degradation rate can double with every 10°C increase in temperature. Understanding what temperature should ascorbic acid be stored at is crucial for preserving its potency and effectiveness, whether in supplements, food, or skincare.

Despite its popularity, vitamin C is a highly unstable ingredient that quickly degrades when exposed to environmental factors. This means you should never store it in a clear bottle, as its potency and benefits will be rapidly compromised by light exposure. Understanding why proper packaging is non-negotiable is key to maximizing your product's effectiveness.

According to dermatologists, a bottle of vitamin C serum typically lasts between 3 to 6 months after opening before it begins to oxidize and lose its potency. This guide explores how long does vitamin C last after opening, the factors that influence its degradation, and the best practices to maintain its effectiveness.

According to numerous threads on Reddit, the instability of vitamin C is a recurring topic, with many users debating the best storage methods to preserve its potency. The question of whether vitamin C needs to be refrigerated often arises due to concerns about oxidation, which can render the product ineffective.

According to a 2010 study published in the *Journal of Agricultural and Food Chemistry*, humidity has a greater impact on vitamin C stability than temperature. However, heat and light still cause degradation, leading many to wonder, "are you supposed to keep vitamin C in the fridge?" The answer depends on the product's formulation, but keeping it cool can often extend its lifespan and potency.

According to dermatologists, ascorbic acid is notoriously unstable and breaks down rapidly when exposed to light, heat, and air. For many, refrigeration is the go-to solution, but if that isn't an option, knowing how to store vitamin C serum without a fridge is crucial for maintaining its potency and extending its shelf life.