Preservative system

for preservative efficacy test

Preservative system

for home-use test

Ingredient

(% (w/v))

1

2

3

4

5

6

C16:1Δ6

-

0.1

-

0.5

-

-

Oleic acid

-

-

-

-

-

0.5

Ethylparaben

-

-

0.05

-

0.1

0.1

Propylparaben

-

-

0.05

0.1

0.1

0.1