90-day low
Checked price
$31.07
Typical $47.20 −34%
Unit price
$3.88
per fl oz
Aisle 8Vitamins & supplements25 deals
Vitamins & supplements deals
This aisle is about price, not health advice. We check vitamin and supplement listings against their own 90-day Amazon price history and publish the ones that dropped; we do not judge whether a supplement works or is right for you. Ask a doctor or pharmacist about that, especially if you take medication.
On the shelf now
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90-day low
Checked price
$13.48
Typical $21.00 −36%
90-day low
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$10.50
Typical $25.18 −58%
90-day low
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$18.44
Typical $27.64 −33%
Unit price
61.5¢
per item
90-day low
Checked price
$9.99
Typical $16.75 −40%
Checked price
$14.27
Typical $23.23 −39%
Unit price
47.6¢
per item
90-day low
Checked price
$17.81
Typical $31.27 −43%
90-day low
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$11.06
Typical $18.89 −42%
Unit price
11.1¢
per item
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$14.76
Typical $25.38 −42%
90-day low
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$9.33
Typical $14.45 −35%
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$16.70
Typical $24.80 −33%
Unit price
16.7¢
per item
90-day low
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$18.34
Typical $29.79 −38%
Unit price
28.7¢
per item
90-day low
Checked price
$10.49
Typical $15.80 −34%
90-day low
Nature's Bounty Optimal Solutions Metabolism Booster Supplement
Nature's Bounty Optimal Solutions
Checked
Checked price
$8.98
Typical $20.10 −55%
Unit price
15.0¢
per item
90-day low
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$6.98
Typical $11.67 −40%
90-day low
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$8.54
Typical $12.55 −32%
Unit price
7.1¢
per item
90-day low
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$6.34
Typical $9.56 −34%
Unit price
10.6¢
per item
90-day low
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$8.74
Typical $12.99 −33%
Unit price
9.7¢
per item
90-day low
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$17.25
Typical $43.12 −60%
Unit price
5.8¢
per item
90-day low
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$6.14
Typical $16.72 −63%
90-day low
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$5.99
Typical $9.88 −39%
90-day low
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$9.99
Typical $14.82 −33%
90-day low
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$8.50
Typical $12.60 −33%
Unit price
60.7¢
per item
90-day low
Checked price
$5.99
Typical $9.22 −35%
Unit price
49.9¢
per oz
90-day low
Checked price
$7.99
Typical $14.08 −43%
Buying vitamins & supplements online
The fairest comparison is cost per serving. One bottle may list 120 capsules with a two-capsule serving while another lists 60 tablets at one per serving, so the same price can mean very different value. Read the supplement facts panel in the listing photos for the serving size, then divide the price by servings.
Check the form and the expiration date. Gummies, capsules, tablets and powders of the same product are separate listings, and large bottles carry a best-by date; buy only what you will finish before then.
How to compare
Compare per serving, not per capsule: the label says how many capsules make one serving. The price per ounce calculator handles multipacks and unit conversions.
Quick answers
Does a lower price mean a lower-quality supplement?
Not necessarily, and a higher price does not prove quality either. We only check price history; look for third-party testing marks on the label if quality is your concern.
How do I compare supplements with different capsule counts?
Divide the price by the number of servings in the bottle (capsules ÷ capsules per serving). That cost per serving is comparable across brands and sizes.
Past checks in this aisle
90-day low
Price when checked
$39.89
Typical $59.28 −33%
Unit price
66.5¢
per item
Price when checked
$7.83
Typical $11.62 −33%
90-day low
Price when checked
$10.49
Typical $15.32 −32%
Unit price
5.2¢
per item
Price when checked
$7.12
Typical $10.90 −35%
90-day low
Price when checked
$16.80
Typical $25.58 −34%
Unit price
8.4¢
per item
90-day low
Price when checked
$7.49
Typical $11.62 −36%
90-day low
Price when checked
$33.70
Typical $50.19 −33%
Unit price
14.0¢
per item
90-day low
Price when checked
$6.98
Typical $14.82 −53%
Unit price
23.3¢
per item