Ingredients
How much tremella is enough?
There is no established threshold, and any brand quoting one is quoting itself. Tremella is a cosmetic humectant, not a regulated active, so no authority sets a minimum effective concentration. What a shopper can actually check is position: where the ingredient falls in a list ordered by concentration.
That check only works on a brand that publishes the full list in order. Most do not, which is the real reason the question is hard to answer.
Why no number exists
A regulated active — a sunscreen filter, say — has a concentration set by law and printed on a drug facts panel. A cosmetic humectant has neither. Tremella extracts also vary: different species preparations, different extraction methods and different carrier systems are all sold under the same INCI name, so two products listing the same ingredient at the same percentage are not necessarily comparable.
This is why a specific figure quoted as the correct amount should be read as a marketing claim rather than a standard. There is nothing to be the correct amount of, yet.
What position tells you
Ingredient lists are ordered by concentration, descending. That makes position the one piece of information a shopper can verify without a lab: an ingredient at number 6 is present in a different order of magnitude from the same ingredient at number 22.
The ordering has a floor. Ingredients below 1% may be listed in any order, so the tail of a list is not strictly ranked. An ingredient featured on the front of a bottle and sitting in that tail is present at a concentration too small to order meaningfully — the practice usually called fairy dusting.
Where it sits in these two creams
Tremella is at position 17 of 24 in the Botanical Skin Cream and position 21 of 27 in the Botanical Matte Hair Cream. Both are in the second half of their lists. That is where it is, not where it would be most impressive.
No percentage is published for tremella in either formula, and one will not be until there is a weighed batch to take it from. The hair cream publishes figures for its top eight ingredients and labels them locked formulation targets; the skin cream publishes none. A number that has not been weighed would be the same error this page is about.
Common questions
How much tremella should be in a skincare product?
There is no established threshold. Tremella is a cosmetic humectant rather than a regulated active, so no authority sets a minimum effective concentration and no brand can cite one that is not its own. Any specific percentage presented as the correct amount is a marketing figure.
How can I tell how much tremella is in a product?
Read its position in the ingredient list. Lists are ordered by concentration, so an ingredient at position 6 is present in a different order of magnitude from the same ingredient at position 22. That is the only check available to a shopper — and it only works if the brand publishes the full list in order.
What does "below 1%" mean on an ingredient list?
Ingredients present at under 1% may be listed in any order, so the tail of a list is not strictly ordered. A featured ingredient sitting in that tail is present at a concentration too low to be ordered meaningfully — which is what the term fairy dusting describes.
Where does tremella sit in the Meria creams?
Tremella fuciformis sporocarp extract is at position 17 of 24 in the Botanical Skin Cream and position 21 of 27 in the Botanical Matte Hair Cream. No percentage is published for it in either formula.
Why does Meria not publish a percentage for tremella?
Because neither formula has been made as a weighed production batch yet. The hair cream publishes locked formulation targets for its top eight ingredients and says so; the skin cream publishes no percentages at all. Publishing a figure that has not been weighed would be the same error as the marketing numbers this page is about.
Botanical Skin Cream · $88
4 oz / 113 g · 24 ingredients published in order, each with the reason it is in there