B.
(A) form
(B) clog
(C) harmful
(D) vulnerable
(E) lets out (F) strips away (G) activists (H) aggregatorsAlmost all the shampoos available in the market contain alcohol. The alcohol dries out bothyour hair and your scalp, eroding a natural oil barrier and leaving you potentially more __64__ to thebacteria. In fact, the reason conditioner is needed after having a shampoo is to replace the oil thatalcohol __65__. In general, mineral oil is used to make shampoos more gentle, but it may __66__pores at the same time and cause acne and other skin problems. Sodium lauryl sulfate and sodiumlaureth sulfate (SLS, SLES) are cleansers commonly found in shampoos. They function to make iteasier for shampoo to __67__ bubbles, or lather. Both of them take dirt away from hair, but both mayalso cause skin irritation. A lot of natural health __68__ even point out that SLS and SLES are verylikely to trigger eye damage, skin damage, and hormone changes.
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