Considering How to Buy Diapers at the Lowest Price (Pampers Edition)

Table of Contents

• Conclusion
• Bulk Buying on Rakuten Ichiba
• Buying with Welcia Points
• Irregular Rakuten Pay Campaigns
• OK Store × Mitsubishi UFJ Card
• Bulk Buying on Yahoo! Shopping
• Amazon

Conclusion

To conclude, the following methods arerecommended in order from top to bottom.

In our home, we used “Hada e no Ichiban (the slightly better one)” until our child was 1.5 years old.

[Choose 1 type] Pampers Diapers Hada e no Ichiban Tape (3 packs) [Pampers Hada e no Ichiban] [Hada e no Ichiban] Buy on Rakuten

For Hada e no Ichiban, regardless of size, it can be considered cheap if the price per diaper is 26-27 yen or less.

And after 1.5 years old, we use “Sarasara Care (the basic one)” diapers.

[Choose 1 type] Pampers Diapers Sarasara Care Pants (1 set) [Pampers] [Sarasara Care] Price: 8,980 yen～（tax included, shipping extra) (as of 2026/6/11) Buy on Rakuten

For Sarasara Care, the price is slightly lower, and regardless of size, it can be considered cheap if the price per diaper is 24-25 yen or less.

So, I hope you can use these price ranges as a benchmark.

If this article was helpful, purchasing through its links would be encouraging.

Bulk Buying on Rakuten Ichiba

First, the most recommended option is Rakuten Ichiba.

Furthermore, the Rakuten 24 Baby Store is cheap.

Rakuten Ichiba has a system called "SPU" (Super Point Up Program), where the point redemption rate increases as you use various Rakuten services.

In our home, we use Rakuten Card and Rakuten Mobile, so our SPU is quite high, but even for those who don't, you can likely buy them cheaper than in stores by aiming for shopping-marathon campaigns and coupons.

Hada e no Ichiban

First, let's look at “Hada e no Ichiban”.

Tape type

[Choose 1 type] Pampers Diapers Hada e no Ichiban Tape (3 packs) [Pampers Hada e no Ichiban] [Hada e no Ichiban] Buy on Rakuten

Pants type

Pampers Hada e no Ichiban Diapers Pants (4 packs) [Pampers] Price: 8,959 yen (tax included, shipping extra) (as of 2026/6/11) Buy on Rakuten

This is a screenshot from the Rakuten Super Sale on June 5th.

A 4-pack set of M-size (224 diapers) for 8,959 yen,
with an 800 yen OFF coupon, and an additional 2,471 points back.

This calculates to approximately 25.393 yen per diaper, which is a fairly low price.

Sarasara Care

Next, let's look at “Sarasara Care”.

Tape type

[Choose 1 type] Pampers Diapers Sarasara Care Tape (4 packs) [Pampers] [Sarasara Care] Price: 9,156 yen (tax included, shipping extra) (as of 2026/6/11) Buy on Rakuten

Pants type

[Choose 1 type] Pampers Diapers Sarasara Care Pants (1 set) [Pampers] [Sarasara Care] Price: 8,980 yen～（tax included, shipping extra) (as of 2026/6/11) Buy on Rakuten

This is also a screenshot from the Rakuten Super Sale on June 5th.

A 4-pack set of M-size (248 diapers) for 8,980 yen,
with an 800 yen OFF coupon, and an additional 2,474 points back.

This calculates to approximately 23.008 yen per diaper, which is also a fairly low price.

Rakuten 24 Baby Store, in addition to the regular SPU, there's often a 20% point back, which directly leads to lower prices. (Try to buy when this 20% is available.)

Therefore, bulk buying on Rakuten Ichiba is the simplest and most effective method, so be sure to check it out.

If this article was helpful, purchasing through its links would be encouraging.

Irregular Rakuten Pay Campaigns

Rakuten again. (We're grateful for their service.)

This is limited to those who use Rakuten Pay, but

Rakuten Pay irregularly holds campaigns like this one.

Image:Welcia

In this campaign, if you pay for eligible products with Rakuten Pay,
you get 30% back for Hada e no Ichiban
and 20% back for Sarasara Care.

During the campaign, you'll see pop-up displays like this in the Pampers sections of Nishimatsuya and drugstores, which is your sign.

This method is also easy, as you just buy in-store, offers the lowest price level, and the redeemed Rakuten points can be used with Rakuten Pay, so it's recommended.

Buying with Welcia Points

This is limited to those who accumulate WAON POINTs at Aeon and other stores, and have a Welcia drugstore nearby.
There's a point-gaining activity where you can get 1.5 times the value when using WAON POINTs at Welcia on the 20th of every month.

(Since I don't use the Aeon economic zone, this is theoretical...)

When I checked Pampers at Welcia, a 'Sarasara Care M-size 52-pack' was sold for 1,628 yen.

If you use just 1,085 WAON POINTs, they become 1.5 times their value, applying as 1627.5 yen.

Presumably, paying the remaining 1 yen in cash would make the 'Wel-katsu' (Welcia activity) a success.

1,085 points for 52 diapers calculates to 20.865 yen per diaper, which is the lowest price level.

If this applies to you, please check it out.

OK Store × Mitsubishi UFJ Card

This is limited to those who have a Mitsubishi UFJ Card, but

With a Mitsubishi UFJ Card, you can receive point redemption at the following eligible stores.

Among these, you can buy diapers cheaply at the discount supermarket “OK Store”.

Recently, “Akachan Honpo” was also added! That's exciting.

(As of June 2026)

Although it says 'up to 20% back', the base is 7%, and it increases as you use various UFJ services; in my case, it's 12.5%.

So, if I talk about a 12.5% cashback,

However, be careful about where the points are redeemed.

Mitsubishi UFJ Card redeems 'Global Points', which can be exchanged for Amazon gift cards and other items, but their redemption rate is low.
Instead, by using them as an exchange option called 'Global Points Wallet', you can achieve the highest redemption rate.

This is explained below.

It's a bit complex, but once set up, it becomes beneficial for purchases other than diapers, so it might be a good card to have.

Thus, it is recommended for those who have a Mitsubishi UFJ Card, have eligible stores like OK Store or Akachan Honpo nearby, and can also plan an exit strategy for Global Points redemption.

(There's a friend referral campaign for Mitsubishi UFJ Card. If you're interested, please comment with your email address, and I'll send it as soon as possible. We both benefit.)

Bulk Buying on Yahoo! Shopping

Yahoo! Shopping can also offer a fairly high redemption rate if you aim for specific days.

Below is a screenshot from July 5th, when 'Bonus Selection +15%', '5-Day +4%', and 'LOHACO HAPPYDAY' overlapped.

If this article was helpful, purchasing through its links would be encouraging.

Amazon

Finally, Amazon.

The advantage of Amazon is that you can order from 1 pack, but since there's no particular point redemption, it's about the same price level as buying in-store.

Even buying 4 packs in bulk, it's 32 yen per diaper.

I'm an Amazon Prime member, use Subscribe & Save, and utilize Amazon, but for diapers, it's not particularly cheap. Of course, there are cheaper days.

Taking advantage of being able to order from 1 pack, here's how to utilize Amazon:

Pampers diapers have QR codes attached to their bags.

Scanning with the Pampers app earns points, which can be exchanged for Amazon 500 yen OFF coupons and other rewards.

Since it's a 500 yen OFF coupon, applying it to a single pack order rather than a bulk purchase can lower the price per diaper, so I always exchange it for Amazon coupons.

Details are explained below.

Hada e no Ichiban

Sarasara Care

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