I used to have really bad acne, so I thought I'd share the products that contributed to me having clearer skin.
When I was younger I had very clear and smooth skin but then puberty hit me and my skin turned into a blotchy red mess, so I tried to get rid of it a few times but not much was changing until I discovered the following products:

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1.Neutrogena Visibly Clear Grapefruit Face-wash £3.50/ $4.81
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2. Mario Badescu Drying Lotion £16.00/ $21.97
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3. Sudocrem (normally used for burns and baby skin but it works really well for spots) £2.55/ $3.50
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4.Simple Hydrating Booster £3.00/ $4.12
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5.Clean & Clear advantage spot control treatment gel £4.35/ $5.98
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6.Clearasil Ultra Rapid Action Pads £6.29/ $8.65
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7.Lacura Moisturising Sun-spray (SPF is so important for your skin, I just like using this one because it's a spray which makes it easy to apply) £3.49/ $4.80
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8.Dirty Works Miracle Cream £5.00/ $6.88
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9.Osiris Recovery Oil £1.00/ $1.38

Good makeup removing products:

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1. Garnier Micellar Water £3.29/ $4.52
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2.Dirty Works 4-in-1 face wipes £2.00/ $2.75

Effective Face Masks:

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1. T-Zone Charcoal Black Peel Off Mask £1.99/$2.73
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2. W7 Charcoal Peel Off Face Mask £1.99/ $2.73
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3.Beauty Formulas Charcoal Clay Mask £1.00/ $1.38
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4.XPEL Body Care Cleansing Charcoal Nose Strips, box of 6 £1.99/ $2.73
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5. Freeman Polishing charcoal and black sugar gel mask+ scrub (175ml, for all skin types) £9.00/ $12.36

Also, drinking plenty of water helps to keep the skin hydrated, healthy and clear.