“Riken’s Wakame Soup” is a representative instant wakame soup series in Japan, sold by Riken Vitamin since 1981. Made by a specialist manufacturer of seaweed ingredients including wakame, the packaging will be renewed in spring 2026. We offer 6 variations: Classic Scallop Soup, Roasted Sesame, Spicy Green Onion Salt, Yukgaejang, Egg, and Gomtang.
Wakame is a traditional Japanese health food rich in dietary fiber, minerals, and fucoidan. With only 10–41 kcal per serving, it can be enjoyed before or after meals or as a snack substitute. Just add hot water to easily enjoy authentic soup, making it perfect for supporting busy daily eating habits.
🍃 Four Features of Wakame Soup
🌿
Plenty of wakame
Luxuriously uses dried wakame rich in dietary fiber and minerals. Add seaweed to your daily meals.
⚡
Low calorie
10–41 kcal per serving. Recommended for those dieting or managing their meals.
☕
Just add hot water
Just open the packet and add 180 ml of hot water to complete. Convenient for busy mornings, late-night snacks, or at the office.
🎨
6 Variations
A rich lineup of 6 types to choose from: Classic, Roasted Sesame, Green Onion Salt, Yukgaejang, Egg, and Gomtang.
🌟 Expected health support
🌊 Supplement of dietary fiber and minerals💧 Potassium helpful for reducing swelling🦴 Intake of calcium and iron🔥 Low calorie to support weight management🌿 Contains fucoidan and alginic acid⚡ Easy daily seaweed habit
📊 Comparison of 6 Variants
Variants
Net weight
Calories
Flavor Characteristics
Specific Allergens
🐚 Wakame Soup (Classic)
5.3 g × 3/8 packet
15 kcal
Hokkaido scallop umami and golden white sesame
Wheat
🌾 Roasted Sesame Soup
9.0 g × 3/8 packet
41 kcal
Aromatic flavor of 1,000 sesame seeds
Wheat, Milk
🌶️ Spicy Green Onion Salt Soup
4.3 g × 3/8 packet
10 kcal
Salt flavor × Black Pepper × Green Onion
None (8 items)
🥩 Yukgaejang Soup
—×3/8 packet
—
Authentic spicy flavor from a yakiniku restaurant
Check Required
🥚 Wakame and Egg Soup
4.3 g × 3/8 packet
14 kcal
Chicken Broth × Fluffy Egg
Wheat, Egg
🍖 Gomtang Soup
—×3/8 packet
—
Rich flavor of beef bone gomtang
Check Required
🌿 Main Ingredients (per serving of Classic 5.3g)
🌊
Dried Wakame Seaweed
Generously blended
Domestic seaweed rich in dietary fiber, minerals, and fucoidan.
🍶
Scallop Extract Powder
Hokkaido Origin
The umami and richness of scallops from Hokkaido form the soup base.
🧂
Equivalent salt content
1.4g
Per serving. Please monitor intake if you are concerned about salt.
🥬
Dietary Fiber
0.6g
Per serving. Contains water-soluble dietary fiber derived from wakame seaweed.
📋 Nutrition Facts
Nutrients
Per serving (5.3g)
Energy
15 kcal
Protein
0.8 g
Fat
0.5 g (Saturated Fatty Acids 0.07 g)
Carbohydrates
2.2 g (Carbohydrates 1.6 g / Dietary Fiber 0.6 g)
Equivalent salt content
1.4 g
Potassium
152 mg
Calcium
12.1 mg
Iron
0.16 mg
Nutrients
Per serving (9.0g)
Energy
41 kcal
Protein
1.3 g
Fat
2.8 g (Saturated Fatty Acids 0.57 g)
Carbohydrates
3.0 g (Carbohydrates 2.1 g / Dietary Fiber 0.9 g)
Equivalent salt content
1.4 g
Potassium
149 mg
Calcium
41.3 mg
Iron
0.34 mg
Nutrients
Per serving (4.3 g)
Energy
10 kcal
Protein
0.7 g
Fat
0.1 g (Saturated Fatty Acids 0.01 g)
Carbohydrates
1.7 g (Carbohydrates 1.2 g / Dietary Fiber 0.5 g)
Equivalent salt content
1.4 g
Potassium
141 mg
Calcium
11.6 mg
Iron
0.15 mg
Nutrients
Per serving (4.3 g)
Energy
14 kcal
Protein
0.7 g
Fat
0.7 g (Saturated Fatty Acids 0.18 g)
Carbohydrates
1.5 g (Carbohydrates 1.1 g / Dietary Fiber 0.4 g)
Equivalent salt content
1.2 g
Potassium
13 mg
Calcium
12.7 mg
Iron
0.17 mg
☕ Easy Preparation
1
🥄
Open the packet
Put the contents of the packet into a bowl or cup
2
💧
Pour hot water
Pour about 180 ml of hot water
3
🌀
Stir well
Stir quickly to finish!
📦 Product specifications
Brand
Riken's Wakame Soup (Riken Vitamin)
Series Lineup
Classic / Roasted Sesame / Green Onion Salt / Yukgaejang / Egg / Gomtang
Net weight
3-pack or 8-pack (Family Pack)
Suggested Retail Price
3 packs: 186 yen (excluding tax) / 8 packs: 429 yen (excluding tax)
Shelf Life
360 days (unopened)
Storage method
Store at room temperature, avoiding high heat and humidity
Yes. japandrug.jp supports shipping to Korea as cross-border e-commerce. Please check customs duties and import regulations on your side.
Where is the wakame sourced from?
The dried wakame used in the product is sourced from Korea. Manufacturing (processing) is done in Japan.
How long is the shelf life?
Unopened, it lasts about 360 days. Please consume as soon as possible after opening.
Can it be dissolved in cold water?
We recommend using hot water (about 180 ml). Please note that ingredients may not dissolve fully in cold water.
I am concerned about allergies. Please tell me the ingredients.
Allergens vary by variant. Please check the "Allergen Information" section above or refer to the detailed pages on the official Riken Vitamin website (rikenvitamin.jp).
📌 Usage Precautions
Be very careful to avoid burns from hot water during preparation and consumption.
In the roasted sesame soup, the skins of roasted sesame seeds may float, but this does not affect quality.
The green streaks in the egg soup are green seaweed strands.
If you have food allergies, be sure to check the ingredient names and allergen information.
Due to product updates, the listed information may differ from the package labeling. Please always check the product label you have.
🏠 Storage Precautions
Store at room temperature, avoiding high heat, humidity, and direct sunlight.
After opening, avoid moisture and consume promptly.
Keep out of reach of infants and toddlers.
* The listed nutritional content, ingredients, and allergen information are as of April 2026. Due to product updates, the package labeling may differ. Please always check the product label you have for final confirmation. * The suggested retail price excludes tax. Selling prices may vary by retailer. * "Riken's Wakame Soup" is a product of Riken Vitamin Co., Ltd. Japan Drug sells it as an authorized retailer through cross-border e-commerce.