One of these models is wearing $600 in makeup from a department store, and the other model is wearing $180 in makeup from a drug store. (ABC News)

Even if you have the cash to spend, do you really need to pay big bucks for makeup to look great?

To find out, ABC News' "20/20? tested out products from a drugstore and from a department store on two identical twin sisters.

Former cosmetic salesperson Shaina Azad and ABC makeup artist Camilla Zola applied $180 in drugstore makeup on one sister and $600 in department store makeup on the other sister.

The department store products:

• Foundation,$62 x 2
• Concealer, $40
• Powder, $62
• Bronzer, $52
• Blush, $62
• Eyelid primer, $16
• Eyeliner, $22
• Eye shadow, $79
• Mascara, $25
• Lip liner, $30
• Lipstick, $35
• Plus tax, TOTAL: $600

The drugstore products:

• Foundation,$16 x 2
• Concealer, $40
• Powder, $10
• Bronzer, $15
• Blush, $7
• Eyelid primer, $5
• Eyeliner, $12
• Eye shadow, $8
• Mascara, $15
• Lip liner, $2
• Lipstick, $11
• Plus tax, TOTAL: $180

Can you tell which sister you think is wearing the department store makeup and which sister is wearing the drugstore makeup?

[SPOILERS BELOW]

…

…

The sister on the left is wearing the department store makeup, and the sister on the right is wearing the drugstore makeup.