MEL Science

Verdict

$30 on TopCashback is the biggest one-time bounty we see for MEL Science right now. We started tracking 8 hours ago — year-over-year context builds from here.

It's an "up to" rate — the headline number may only apply to some categories.

MEL Science · cashback rates, best first

TopCashback$30 up to

Rakuten$15 up to

Rakuten (Amex MR)$15 up to

Simply Best Coupons$9

as of Jul 13, 2026 · updates automatically

Cashback

Portal	Rate	Checked
TopCashback	$30 up to $ flat	8h ago	Shop
Rakuten	$15 up to $ flat	58m ago	Shop
Rakuten (Amex MR)	$15 Amex MR points up to $ flat	58m ago	Shop
Simply Best Coupons	$9 $ flat	10h ago	Shop

TopCashback 8h ago

$30 up to $ flat Shop

Rakuten 58m ago

$15 up to $ flat Shop

Rakuten (Amex MR) 58m ago

$15 Amex MR points up to $ flat Shop

Simply Best Coupons 10h ago

$9 $ flat Shop

Joining a portal through a link here may earn us a referral bonus — it never changes these rates or their order. Details

Best play

Stack the portal with the right card — the same purchase earns twice.

1 Shop through TopCashback $30 up to $ flat

Pay with Amex Blue Cash Everyday 3% back on online retail

Also fits: Bank of America Customized Cash Rewards (3% back on online retail) · Amex Blue Business Plus (2x Amex MR points on everything)

Card earn rates are editorial notes — static rules only; caps and terms are the issuer's, so check before relying on one. We don't link card applications, and portal points and card points are never converted into each other here.

Rate history

Full history →

Best cashback rate

Recent changes

MEL Science on TopCashback $30 8h ago MEL Science on Rakuten (Amex MR) $15 Amex MR points 9h ago MEL Science on Rakuten $15 9h ago MEL Science on Simply Best Coupons $9 10h ago