
I’m not good at English, so I’m sorry if I make any mistakes
“I heard Myprotein was cheap, but looking at the official site… it doesn’t seem that cheap?” Many of you might be feeling this way right now.
| Brand Name | Est. Price per 1kg (USD / JPY) | Value Rating | Notes |
|---|---|---|---|
| Myprotein | ~$22.15 (Approx. ¥3,500〜) | ★★★★★ | Unbeatable during major flash sales |
| X-PLOSION | ~$25.30 (Approx. ¥3,999〜) | ★★★★☆ | Cheapest among Japanese brands |
| GronG | ~$26.58 (Approx. ¥4,200〜) | ★★★☆☆ | Good value during recurring sales |
| VALX | ~$28.35 (Approx. ¥4,480〜) | ★★★☆☆ | Highly rated for taste; slightly pricey |
| SAVAS (Meiji) | ~$36.70 (Approx. ¥5,800〜) | ★★☆☆☆ | Reliable quality but poor cost-performance |
*Estimates based on market prices and 45-50% off sales as of April 2026. Exchange rate: $1 USD ≈ ¥158 JPY.
To be honest, Myprotein used to be insanely cheap back in the day. However, after researching the market, I found that not only Myprotein, but all protein brands have increased their prices. After 8 years of using Myprotein and constantly comparing it with others, I always come back to the same conclusion: “Myprotein is still the most stable and affordable choice.” —
When Did Myprotein Get So Expensive? [The Shocking 2.8x Increase]

Long-time users will remember the “glory days”—when 1kg of protein was around 2,000 JPY during campaigns. Looking back, that price was almost like a system glitch!
According to data, prices have jumped nearly 2.8 times since 2019:
- 2021: 2.5kg for around 5,000 JPY
- 2022: 5kg for over 20,000 JPY (Before discount)
You might think, “Myprotein is getting greedy!” But actually, it’s not just their fault.
The 3 “Culprits” Behind the Price Hike
- Global Protein Wars: Fitness is booming worldwide. From babies to the elderly, everyone is consuming protein now, leading to a global shortage of “Whey” raw materials.
- Fuel Costs & Weak Yen: The cost of flying products from overseas has surged. For those of us in Japan, the weakening Yen has automatically made imported goods more expensive.
- Environmental Regulations: In Europe, stricter rules for cattle farming (the source of whey) have led to a decrease in milk production.
[2026 Latest] Why Myprotein is Still the Cheapest After All
You might wonder, “Aren’t Japanese domestic brands cheaper now?” I did the math. Even major Japanese brands like SAVAS announced price hikes of over 10% in 2025. Everyone is raising prices together.
| Brand Name | Est. Price per 1kg (USD / JPY) | Value Rating | Notes |
|---|---|---|---|
| Myprotein | ~$22.15 (Approx. ¥3,500〜) | ★★★★★ | Unbeatable during major flash sales |
| X-PLOSION | ~$25.30 (Approx. ¥3,999〜) | ★★★★☆ | Cheapest among Japanese brands |
| GronG | ~$26.58 (Approx. ¥4,200〜) | ★★★☆☆ | Good value during recurring sales |
| VALX | ~$28.35 (Approx. ¥4,480〜) | ★★★☆☆ | Highly rated for taste; slightly pricey |
| SAVAS (Meiji) | ~$36.70 (Approx. ¥5,800〜) | ★★☆☆☆ | Reliable quality but poor cost-performance |
*Myprotein price is based on 45-50% OFF flash sales.
As you can see, if you aim for the flash sales, Myprotein is still significantly cheaper than its competitors.
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Why I’ve Stayed Loyal to Myprotein for 8 Years

I’ve thought about switching many times, but I always end up back with Myprotein. The reasons are simple:
- The Sales are “Insane”: While the list price is high, their Flash Sales (like 11/11 or 2/2) offer prices that domestic brands simply cannot beat.
- Never Get Bored of the Taste: Only Myprotein offers over 60 flavors. Variety is key to staying consistent with your diet!
- Everything in One Place: You can buy BCAA, vitamins, and low-carb snacks all at once. The money you save can go toward buying more supplements!
Summary | Today is Actually the “Cheapest” Day

While we complain about prices going up, they might be even higher next month. Given the global shortage of raw materials, “Today might be the cheapest day” for a long time.
After 8 years of testing various brands, I always find myself returning to Myprotein. (lol)
They run sales regularly, so buy smart, save money, and use that extra cash to buy some new gym gear to skyrocket your motivation!

