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expiredphoinix | Staff posted Mar 19, 2026 07:12 AM
expiredphoinix | Staff posted Mar 19, 2026 07:12 AM

90-Ct Sports Research Magtein 2000mg Magnesium L-Threonate Veggie Capsules

w/ S&S

$15

$30

50% off
Amazon
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Sports Research via Amazon has 90-Count Sports Research Magtein 2000mg Magnesium L-Threonate Veggie Capsules for $29.95 - 40% when you 'clip' the coupon on product page - 10% when you check out via Subscribe & Save = $14.97. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for finding this deal.

Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.

Editor's Notes

Written by johnny_miller | Staff
  • Our research indicates this offer is $14.98 lower (50% savings) than the next best price from a reputable merchant at the time of this post.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by phoinix | Staff
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Deal Details
Product Info
Community Notes
About the Poster
Sports Research via Amazon has 90-Count Sports Research Magtein 2000mg Magnesium L-Threonate Veggie Capsules for $29.95 - 40% when you 'clip' the coupon on product page - 10% when you check out via Subscribe & Save = $14.97. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for finding this deal.

Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.

Editor's Notes

Written by johnny_miller | Staff
  • Our research indicates this offer is $14.98 lower (50% savings) than the next best price from a reputable merchant at the time of this post.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by phoinix | Staff

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+15
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Model: Sports Research Magtein Magnesium L-Threonate Capsules - Magnesium Supplement for Memory, Focus & Cognition - Magnesium L Threonate Supports Brain Health, Sleep & Mood - 2000mg, 90 Capsules for Adults

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Sort: Lowest to Highest | Last Updated 3/23/2026, 02:53 PM
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Amazon$29.95

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Top Comments

Fat_Fielder
439 Posts
85 Reputation
Currently, through March 29, the 135 count is on sale for $26.99 (20¢/pill) @ Costco, so this is a better deal = 16.6¢/pill or 15¢/pill respectively!

10 Comments

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Mar 19, 2026 01:12 PM
439 Posts
Joined Jan 2009
Fat_FielderMar 19, 2026 01:12 PM
439 Posts

Our community has rated this post as helpful. If you agree, why not thank Fat_Fielder

Currently, through March 29, the 135 count is on sale for $26.99 (20¢/pill) @ Costco, so this is a better deal = 16.6¢/pill or 15¢/pill respectively!
2
Mar 19, 2026 04:59 PM
1,982 Posts
Joined Nov 2010
testshootMar 19, 2026 04:59 PM
1,982 Posts
Was subscribed for $28.45. Canceled the subscription. Will not honor this deal, still wanting $28.45 and AZ removed S&S.
Mar 19, 2026 08:48 PM
96 Posts
Joined Sep 2013
sanchetaMar 19, 2026 08:48 PM
96 Posts
"$29.95 - 40% - 10%"

10% off on top of 40% off does not equate to 50% off, no matter how much you wish it so. Basic arithmetic. It comes out to ((1 - (1-.4) (1-0.1))10)) 46% off.
Mar 20, 2026 01:27 AM
528 Posts
Joined Jul 2019
mjsevillaMar 20, 2026 01:27 AM
528 Posts
Huge ymmv - 40% off not present for me
Mar 20, 2026 03:10 AM
374 Posts
Joined May 2016
KingLukaMar 20, 2026 03:10 AM
374 Posts
No discount at all for me
Mar 20, 2026 06:01 AM
362 Posts
Joined Jul 2012
uping1Mar 20, 2026 06:01 AM
362 Posts
Thanks OP! I ordered the limit of 1 S&S for the maximum discount...
Mar 20, 2026 05:23 PM
229 Posts
Joined Nov 2009
bboywu123Mar 20, 2026 05:23 PM
229 Posts
Quote from sancheta :
"$29.95 - 40% - 10%"10% off on top of 40% off does not equate to 50% off, no matter how much you wish it so. Basic arithmetic. It comes out to ((1 - (1-.4) (1-0.1))10)) 46% off.
Thanks for the math lesson but it literally says "Subscribe and save 50% on first delivery" right before I place the order

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Mar 20, 2026 05:27 PM
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phoinixMar 20, 2026 05:27 PM
Original Poster
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Quote from sancheta :
"$29.95 - 40% - 10%"

10% off on top of 40% off does not equate to 50% off, no matter how much you wish it so. Basic arithmetic. It comes out to ((1 - (1-.4) (1-0.1))10)) 46% off.
Amazon discounts/coupons are applied to the initial price.
Mar 21, 2026 02:14 AM
192 Posts
Joined Nov 2012
MerrimaxMar 21, 2026 02:14 AM
192 Posts
Quote from sancheta :
"$29.95 - 40% - 10%"

10% off on top of 40% off does not equate to 50% off, no matter how much you wish it so. Basic arithmetic. It comes out to ((1 - (1-.4) (1-0.1))10)) 46% off.
Was $13.47 for me so, 55% off. The discounts are all applied to base price.
Mar 21, 2026 02:18 AM
192 Posts
Joined Nov 2012
MerrimaxMar 21, 2026 02:18 AM
192 Posts
Quote from Merrimax :
Was $13.47 for me so, 55% off. The discounts are all applied to base price.
Discount still good as of 9:05 PM CDT.
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