Home › Cosmetic Science Talk › Formulating › General › tkb cap 2 Preservative Expiry
Tagged: preservative
-
tkb cap 2 Preservative Expiry
Posted by saraahsan on December 1, 2020 at 1:03 amhi wonderful people here
i am using tkb cap 2 in lipstick and it is all going well. my question is i bought this preservative last year in december 2019. i dont know its expiry but i think one year is its expiry so it will expire this month December 2020.can i use this preservative now? should i need to buy new one or can i still use this month. any one have knowledge about tkb preservative plz guide
saraahsan replied 3 years, 11 months ago 3 Members · 8 Replies -
8 Replies
-
Ask TKB for an ex. date. If they can’t/won’t respond, do not use their products.
Are you sure you need a preservative in a lipstick? -
PhilGeis said:Ask TKB for an ex. date. If they can’t/won’t respond, do not use their products.
Are you sure you need a preservative in a lipstick?yes actually i sell them so i add lip safe preservative in my Lipstick formula. expiry was one year. i bought in last December..so i wanted to ask can i still add that preservative as December is just started or i should buy new one
-
Sale does not require preservative per se. Is it classic wax based product?
Re. TKB, think the exp would be for the material meeting its own spec - so within that period it should be as intended.
-
PhilGeis said:Sale does not require preservative per se. Is it classic wax based product?
Re. TKB, think the exp would be for the material meeting its own spec - so within that period it should be as intended.
yes i make wax and oil based lipstick. mostly when we see market bought lipstick ingredients they also add preservatives like parabens on list.
i have tocopherol as well. i think that is enough to add in formula so my oils dont go rancid. am i right? -
I always use them up to the expiry date. I don’t believe 100% oil/wax products needs preservatives. I was making lip balms a few tears ago and never added one, just vitamin E and Rosemary extract.
-
Tocopherol is a good idea. Some use parabens to prevent mold. TKB Cap 2 (glycols and phenoxyethanol) would be good vs bacteria esp. Gram negative bacteria. A wax based lipstick is not much of a bacterial risk, and those are are poor vs fungi.
Perhaps consider just a paraben. -
Zara said:I always use them up to the expiry date. I don’t believe 100% oil/wax products needs preservatives. I was making lip balms a few tears ago and never added one, just vitamin E and Rosemary extract.
thank you dear for guidance i think i should add vitamin e only
-
PhilGeis said:Tocopherol is a good idea. Some use parabens to prevent mold. TKB Cap 2 (glycols and phenoxyethanol) would be good vs bacteria esp. Gram negative bacteria. A wax based lipstick is not much of a bacterial risk, and those are are poor vs fungi.
Perhaps consider just a paraben.thank you so much for guidance i will keep these points in mind and i will switch to vitamin e tocopherol only. will stop using preservative in lipstick
Log in to reply.