Table 5: Concentration of BHA, BHT, and OMC in sunscreen cream, milk lotion, hair gel, and hair oil samples determined by RP-HPLC-UV/Vis at = 280 nm.

Type Commercial name Country of origin Phenolic compounds Mean concentration (mg/g) (1) () (2) () (3) () Average (mg/g) RSD% Sunscreen cream Aiken Malaysia BHA 4.85 1.50 BHT 1.33 3.88 OMC 65.5 0.77 Nivea Thailand BHA 3.26 2.43 BHT 1.01 4.47 OMC 27.96 1.58 Gervenne Malaysia BHA 1.82 3.92 BHT n.d n.d n.d n.d n.d OMC 16.23 2.68 Milk lotion Nivea Thailand BHA 4.50 1.57 BHT 2.30 3.21 OMC 13.83 1.55 New Trendy Malaysia BHA 4.16 2.82 BHT n.d n.d n.d n.d n.d OMC 8.99 3.79 Garnier Indonesia BHA 2.74 3.32 BHT 0.73 3.26 OMC 17.0 1.86 Hair gel De Boy Malaysia BHA 1.28 3.14 BHT 0.22 3.40 OMC 0.13 4.52 Beyond Malaysia BHA 1.38 3.37 BHT 0.16 4.05 OMC 0.30 3.48 Elite Malaysia BHA 1.51 2.76 BHT 0.17 4.48 OMC 0.84 2.69 Hair oil Elite Malaysia BHA 3.89 1.06 BHT 0.87 2.11 OMC 0.82 1.37 Gervenne Malaysia BHA 0.13 4.66 BHT 1.54 3.25 OMC 3.40 1.75 Johnsons Philippines BHA 0.30 3.40 BHT 0.18 4.13 OMC 0.57 2.19

n.d: not detected or below detection limit.