Astrocaryum Murumuru Seed Butter
Astrocaryum murumuru seed butter is rated 3 to 5 on our list, a range whose top puts it in the high band, and that number is unconfirmed: we have not traced it to a published study (what unconfirmed means).
Like every rating here, it is for the raw ingredient tested alone, and a label does not print how much of it a product holds.
Is astrocaryum murumuru seed butter comedogenic?
Astrocaryum Murumuru Seed Butter is rated 3–5 on the comedogenic scale: our list gives it a range from 3 to 5, and the band follows the 5 at the top.
A rich Amazonian butter used to lock in moisture and protect the skin barrier.
- Comedogenic rating
- 3–5 out of 5 (a range on our list)
- Band
- High: Clear plugging in the rabbit-ear test. The first band to check in a leave-on product.
- Where the number comes from
- Unconfirmed. We could not trace this rating to a study we have read; the section on who rated it says what we checked.
- Composition
- Natural Plant Butter / Fatty Acids
- Also written as
- No common variants recorded
What a 3–5 means in practice
A 4 or 5 is the top of the scale. In the rabbit-ear test, Fulton 1989 counted 4 to 5 as a clear positive: the ingredient plugged the follicles, and did so repeatably. A person's skin reacts less readily than a rabbit's ear, and a product holds far less of the ingredient than the test did, so treat this band as the first thing to check in anything that stays on your skin. It does not prove the ingredient will cause a breakout. A rinse-off product is on the skin for seconds.
Two things change what this number is worth. Ingredients are listed in descending order of concentration, so astrocaryum murumuru seed butter near the top of a label matters far more than astrocaryum murumuru seed butter at the bottom. And the rating describes the raw ingredient on its own. A 2006 review in the Journal of the American Academy of Dermatology found that a rating for a single ingredient does not reliably predict how a finished formula behaves on human skin. The full story of the scale is here.
Who rated it
We could not trace the 3–5 on our list to a paper we have read. Neither paper we could read tests astrocaryum murumuru seed butter. The list does not say where its numbers came from, so treat this number as unconfirmed rather than as one we can tie to a table.
Others in the same family
Fungal acne
Astrocaryum Murumuru Seed Butter matches rule 4, plant or animal oil or butter , on the fungal acne checker. A butter, mostly triglycerides. The rule comes from lab studies of what Malassezia yeast can feed on, and it is not a verdict on any product.
Common questions
- Is astrocaryum murumuru seed butter comedogenic?
- Astrocaryum Murumuru Seed Butter is rated 3–5 on the comedogenic scale: our list gives it a range from 3 to 5, and the band follows the 5 at the top. We have not found a published study that grades it, so treat this number as unconfirmed.
- Is astrocaryum murumuru seed butter non comedogenic?
- No. Astrocaryum Murumuru Seed Butter is rated 3–5 on the comedogenic scale, which is the high band. That is the number on our list rather than a verdict on any product. We have not traced it to a published study, so treat it as unconfirmed.
- What is astrocaryum murumuru seed butter's comedogenic rating?
- 3–5 out of 5 on our list. It is classed as Natural Plant Butter / Fatty Acids. We have not found a published study that grades it, so treat this number as unconfirmed.
Sources we checked this rating against
- Kligman AM, Kwong T. “An improved rabbit ear model for assessing comedogenic substances.” British Journal of Dermatology, June 1979;100(6):699–702. (opens in a new tab) The rabbit-ear assay behind published 0 to 5 comedogenicity grades.
- Fulton JE Jr. “Comedogenicity and irritancy of commonly used ingredients in skin care products.” Journal of the Society of Cosmetic Chemists, November/December 1989;40(6):321–333. (opens in a new tab) Rabbit ear. Each ingredient at 10 percent in propylene glycol unless stated, applied five days a week for two weeks, and graded 0 to 5 from the width of the follicles, measured by micrometer and under the microscope. The paper counts 0 to 1 as not significant, 2 to 3 as borderline and 4 to 5 as positive. Some grades depended on the supplier of the raw material, and some oils were also tested refined.
- Draelos ZD, DiNardo JC. “A re-evaluation of the comedogenicity concept.” Journal of the American Academy of Dermatology, March 2006;54(3):507–512. doi:10.1016/j.jaad.2005.11.1058 (opens in a new tab) Tested finished products on the backs of six people and concluded that “Finished products using comedogenic ingredients are not necessarily comedogenic.”