Hair Styling Gel VO5 Extreme Style Power Review

my son bought this product with a valid date and from abig store with normal storing condition, and he used it on dry hair and on wet hair with sutible amount. he applied it during his school time but actually after 2-3 hours this product made a white powder on his hair and all of his friend escaped from him and told him you has hair dandruff this happened twice and my son very very depressed about this issue. for your knowledge my son has beautiful clean hair.he is careful stylish boy.this made for him psychological trauma, and made him in abad situation between his friends