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frontpageNavy-Wife | Staff posted Yesterday 03:23 PM
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frontpageNavy-Wife | Staff posted Yesterday 03:23 PM

COSLUS C30 Sonic Electric Toothbrush w/ 4 Replacement Heads (Black)

$4.00

$13

69% off
Amazon
32 Comments 6,647 Views
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Deal Details
YIINRG via Amazon has COSLUS C30 Sonic Electric Toothbrush (Black) sale for $7.99 - $4 when you apply promo code 4QTD9DM8 at checkout = $3.99. Shipping is free w/ Prime or on $35+ orders.

Thanks to Deal Hunter Navy-Wife for sharing this deal.

About this product:
  • 5 cleaning modes & 3 intensity levels
  • IPX7 waterproof design
  • Ergonomic, non-slip, and compact handle
  • 2 Types of Upgraded Brush Head
  • Compact Travel Design

Editor's Notes

Written by RevOne | Staff
  • This price matches a previous Frontpage Deal from last week.
  • 4.5 out of 5 stars at Amazon based on 680+ customer reviews.
  • Seller YIINRG has 4.9 out of 5 stars lifetime feedback based on 500+ customer ratings.
  • 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.
No Longer Valid:
  • promo code RK89ZPNC

Original Post

Written by Navy-Wife | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
YIINRG via Amazon has COSLUS C30 Sonic Electric Toothbrush (Black) sale for $7.99 - $4 when you apply promo code 4QTD9DM8 at checkout = $3.99. Shipping is free w/ Prime or on $35+ orders.

Thanks to Deal Hunter Navy-Wife for sharing this deal.

About this product:
  • 5 cleaning modes & 3 intensity levels
  • IPX7 waterproof design
  • Ergonomic, non-slip, and compact handle
  • 2 Types of Upgraded Brush Head
  • Compact Travel Design

Editor's Notes

Written by RevOne | Staff
  • This price matches a previous Frontpage Deal from last week.
  • 4.5 out of 5 stars at Amazon based on 680+ customer reviews.
  • Seller YIINRG has 4.9 out of 5 stars lifetime feedback based on 500+ customer ratings.
  • 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.
No Longer Valid:
  • promo code RK89ZPNC

Original Post

Written by Navy-Wife | Staff

Community Voting

Deal Score
+42
Good Deal
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Price Intelligence

Model: COSLUS Sonic Electric Toothbrush for Adults: 3 Intensities & 5 Modes Gum-Friendly for Deep Cleaning & Whitening - 2 Types of Heads for Family, Sensitive Teeth, Braces, Travel & Home Use, Black

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 2/3/2026, 01:34 AM
Sold By Sale Price
Amazon$7.99

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32 Comments

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Yesterday 04:33 PM
1,690 Posts
Joined Nov 2009
taller238Yesterday 04:33 PM
1,690 Posts
Seems prime only.
Yesterday 04:42 PM
188 Posts
Joined Jun 2018

This comment has been rated as unhelpful by Slickdeals users.

Yesterday 04:42 PM
485 Posts
Joined Mar 2007
keishashadowYesterday 04:42 PM
485 Posts
good find OP

in same ballpark as a toothbrush or two lol, seems like good idea for travel

was able to pick up one with each code. will see if 2nd cancelled
Last edited by keishashadow February 2, 2026 at 09:44 AM.
Yesterday 04:49 PM
40 Posts
Joined Jan 2026
TenderMoon644Yesterday 04:49 PM
40 Posts
I see "COSLUS" but my brain says "COLONOSCOPY". Why?
1
Yesterday 04:50 PM
60 Posts
Joined Dec 2023
iamjeffYesterday 04:50 PM
60 Posts
Quote from taller238 :
Seems prime only.
I don't have prime so it was $12.99 for me.

Used code and got $9.00 off, so it works for non-prime members, too.
Yesterday 04:51 PM
60 Posts
Joined Dec 2023
iamjeffYesterday 04:51 PM
60 Posts
Quote from TenderMoon644 :
I see "COSLUS" but my brain says "COLONOSCOPY". Why?
You getting to that age?

I hear ya!
Pro
Yesterday 05:01 PM
3,907 Posts
Joined Sep 2018
EfficientSnail709
Pro
Yesterday 05:01 PM
3,907 Posts
Quote from taller238 :
Seems prime only.
You can purchase this as a non-prime member....just switch to the "regular price" ($12.99) and add code #XY2K5W4M before you check out. It will apply a $9 discount. The only problem is that you won't qualify for free shipping unless you spend enough (over and above $12.99) to equal a total of $35.
Multiple quantities of this item won't work, since there's a limit of 1.

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Yesterday 05:41 PM
1,494 Posts
Joined Mar 2009
area201Yesterday 05:41 PM
1,494 Posts
Quote from ChrisA1106 :
Not a chance am I putting a product from some random-letter brand in my mouth.
Probably same factory or a sister factory makes recognized brands anyway!
Yesterday 05:42 PM
47 Posts
Joined Jun 2008
suka4thongYesterday 05:42 PM
47 Posts
In for 1
Yesterday 06:08 PM
797 Posts
Joined Nov 2011
adtruckYesterday 06:08 PM
797 Posts
Code did not work any more. This deal is gone
Yesterday 06:11 PM
27 Posts
Joined May 2014
petessake72Yesterday 06:11 PM
27 Posts
Dead ? Neither code works and yes for Prime...i see $7.99
Original Poster
Pro
Deal Hunter
Yesterday 07:08 PM
11,133 Posts
Joined Nov 2010
Navy-WifeYesterday 07:08 PM
Original Poster
Pro
Deal Hunter
11,133 Posts
Quote from petessake72 :
Dead ? Neither code works and yes for Prime...i see $7.99
Quote from adtruck :
Code did not work any more. This deal is gone
New promo code: RK89ZPNC
Yesterday 08:21 PM
2,042 Posts
Joined Jul 2004
rcs1Yesterday 08:21 PM
2,042 Posts
These were 2 for $10 last week - highly recommended at the price.
1
Yesterday 08:48 PM
51 Posts
Joined Mar 2016
mart0522Yesterday 08:48 PM
51 Posts
Quote from ChrisA1106 :
Not a chance am I putting a product from some random-letter brand in my mouth.
Then we're all convinced by your wisdom. In for one
2

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Yesterday 09:10 PM
2,105 Posts
Joined Nov 2014
Mark42mcYesterday 09:10 PM
2,105 Posts
Thanks op. I was looking for one that charges. I'm in for one. Could work great. Thanks! 👍

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