30 items that prove women pay more than men for the same products

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It's expensive to be a woman, and it's not just because it costs a lot to maintain one's appearance.

There's a "pink tax" involved, or a surcharge in which women are sometimes charged more than men are charged for many products.

A study from New York's Department of Consumer Affairs, called "From Cradle to Cane: The Cost of Being A Female Consumer," demonstrated how this is a problem that often plagues females from birth until they're senior citizens.

Here are 30 items that, according to the study, are on average more expensive for women than they are for men.

Shampoo and conditioner

Percent difference: 48%
Average women's price: $8.39
Average men's price: $5.68

Based on 16 products sampled

Razors

Percent difference: 11%
Average women's price: $8.90
Average men's price: $7.99

Based on 20 products sampled

Cartridges for razors

Percent difference: 11%
Average women's price: $17.30
Average men's price: $15.61

Based on 18 products sampled