. 2010 Mar 23;2010:715739. doi: 10.1155/2010/715739

Table 1.

Results of human skin primary irritation tests (n = 32).

Test materials	No. of responders	48 hours			72 hours			Reaction grade^a
Test materials	No. of responders	1+	2+	3+	1+	2+	3+	48 hours	72 hours	Mean
Squalane	0	^b—	—	—	—	—	—	0.0	0.0	0.0
AFW extracts (1%)	0	—	—	—	—	—	—	0.0	0.0	0.0

^aReaction grade = Σ[{Grade × no. of responders}/{4 (maximum grade) × 32 (total subjects)}] × 100 × (1/2).

^bNo reaction.