REYS
EAA Powder 600g, Made in Japan
EAA Powder 600g, Made in Japan
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We currently ship to the following countries: Taiwan, Malaysia, Singapore, Hong Kong, China, Thailand, Australia, the Philippines, and the United States.
Shipping & Delivery
Shipping & Delivery
🔔Our carrier is unable to deliver to SF Lockers or P.O. Boxes, as all international shipments require a valid address where someone can sign for the package upon delivery.
Shipping Fee
Shipping costs are automatically calculated by the system based on the contents of the order: the place of delivery, the mode of transportation and the weight of the package. You can check the cost using the shipping calculator on the shopping cart page or confirm the shipping cost on the checkout page.
Estimated delivery time
We use the most appropriate logistics method for your shipment depending on the location and type of item, so transit times may vary. After your order has shipped, you will receive an email from us containing the shipping order number and a tracking link for your order.
Fulfilling and estimated delivery time: 5~20 business days
The above is an estimate, not a guaranteed delivery time. We will do our best to deliver according to the estimated delivery time, but sometimes there may be delays. For example, local postal/logistics, weather, festivals or other uncontrollable factors. If you have further questions, please feel free to contact us.
Payment Method
Payment Method
We accept major credit cards including Visa, MasterCard and American Express. When paying by credit card, your name and billing address must match the address on file with the card issuer. We also accept PayPal, Apple Pay, Google Pay, AliPay, WeChatPay and UnionPay.
Tax & Custom
Tax & Custom
You may be charged additional handling, import, or tax fees as your order passes through customs. Please note, any additional charges on shipments are the customer’s responsibility, and we recommend reviewing these with your local customs departments prior to ordering.
Return & Refund
Return & Refund
We offer an 8-day return policy. Within 8 days of receiving your item, you may apply for a return or refund only if the product is defective or incorrect.
Returns are not accepted for reasons such as change of mind, mistaken purchase, or compatibility issues with local power sources.
Customized, hygiene-related, perishable, or hazardous products are non-returnable.
Return shipping and any handling fees are the customer’s responsibility unless the return is due to our error.
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REYS EAA Powder 600g, Made in Japan
[Product Features]
• Made in Japan, REYS EAA powder is supervised by popular fitness YouTuber Rei Yamazawa and contains all 9 essential amino acids that the body cannot synthesize
• Delivers 8,000mg of EAA per 12g serving, including leucine, isoleucine, valine, lysine, methionine, tryptophan, and more in a balanced ratio
• Enriched with 800mg of beta-alanine plus a full day’s supply of vitamins B1, B2, and B6 to support energy metabolism and daily activity
• Special formula masks the bitterness and odor of amino acids—98% of users rated the taste as pleasant; available in 4 flavors: Lemon Lime, Shine Muscat, Raspberry Cassis, Pineapple
• Recommended as a morning or workout drink to support effective training
• Classified as a Food with Nutrient Function Claims in Japan, supporting carbohydrate and protein metabolism, and the health of skin and mucous membranes
[Product Specification]
• Content: 600g (powder form)
• Suggested intake: Approx. 12g (1 scoop) dissolved in 300–400ml of cold water
• Key ingredients per serving:
EAA 8000mg (Leucine 2400mg, Isoleucine 1200mg, Valine 1200mg, Threonine 640mg, Lysine 1360mg, Methionine 280mg, Histidine 280mg, Phenylalanine 560mg, Tryptophan 80mg),
Beta-alanine 800mg, Vitamins B1, B2, B6
• Flavor options: Lemon Lime, Shine Muscat, Raspberry Cassis, Pineapple
REYS, a sports nutrition brand supervised by YouTube influencer Rei Yamazawa, who has over 980,000 subscribers, is renowned for its commitment to "deliciousness, easy mixing, and affordability." After meticulous ingredient selection and repeated trials, the brand developed a whey protein (WPC) with exceptional taste and solubility, perfect even with water. Recognized for its outstanding quality, REYS won the 2023 Amazon.co.jp Business Seller Award. Elevate your daily routine with REYS Whey Protein—a health supplement you’ll look forward to enjoying every day!