What a 1/5 rating means
On the comedogenic scale, a 1 sits at the safe end of the scale — clogging is unlikely for most people. That places Caprylic/Capric Triglyceride in the range most people, including many with acne-prone skin, tolerate well.
One thing the number cannot tell you is concentration. Ingredients are listed in descending order, so Caprylic/Capric Triglyceride near the end of a label is present in tiny amounts and matters far less than the same ingredient near the top.
About Caprylic/Capric Triglyceride
It is a lightweight emollient chosen for slip without heaviness. A light, coconut-derived ester of short C8-C10 fatty acids. Low comedogenicity and, because its chains are shorter than C11, it is widely used as a fungal-acne-safe oil substitute.
On a label it can read as Caprylic/Capric Triglyceride, Caprylic Capric Triglyceride, Capric/Caprylic Triglyceride, Mct Oil — worth knowing when you scan an ingredient deck.
Caprylic/Capric Triglyceride in makeup and skincare
It is a favourite in 'skin-friendly' foundations and lightweight moisturisers. Its irritancy is rated separately at 0/5, which is low.