> "The [oil blend] bottles look like those travel-size shampoos you find at drug stores or in hotel rooms; they’re convenient, but they seem wasteful since you’

> "The [oil blend] bottles look like those travel-size shampoos you find at drug stores or in hotel rooms; they’re convenient, but they seem wasteful since you’re unscrewing one and throwing it away every single day." Essential fats (polyunsaturated fatty acids) oxidize when they come in contact with the air. Not individually packaging these would be a mistake since the oil would go rancid by day 5.