Our products are best stored in a dry place at room temperature. Some of our serums are photosensitive (exposure to light can alter the product's efficacy), so the bottles are amber to protect the formula. Some products, such as hydrolats, can be kept in a cool place, just to enhance the sensations when they are applied.
Some products may change over time, due to their high composition of natural ingredients. These are not generally inert, and tend to change color or scent over time. Nevertheless, we monitor the stability of our products to ensure maximum effectiveness and safety under normal conditions of use.