Protesan R
Protesan R
¥15,206 JPY
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Protesan R
Patented lactic acid bacteria material FK-23 · Equivalent to 1 trillion per packet · Equivalent to 100L of yogurt · 62 packets included
Protesan R contains FK-23 (heat-treated lactic acid bacteria) plus both indigestible dextrin (dietary fiber) and oligosaccharides. Compared to Protesan S (oligosaccharides only), it is a balanced formulation with enhanced auxiliary ingredients supporting the intestinal environment. It has been featured multiple times in women's magazines' lactic acid bacteria specials and is widely used by those working on daily health and beauty care.
Protesan R is positioned as the standard for daily health maintenance in Nichinichi Pharmaceutical's long-selling "Protesan" supplement series. It contains FK-23 lactic acid bacteria material equivalent to 1 trillion per packet (1.2g), equivalent to 100L of yogurt.
Among the Protesan series lineup (B: 300 billion → R: 1 trillion → S: 4 trillion → S3: 12 trillion), Protesan R is a central product praised for its cost performance and ease of use, allowing the daily recommended amount to be taken with 1 to 2 packets.
Unlike Protesan S, it also contains indigestible dextrin (dietary fiber) to support the intestinal environment, making it a more balanced raw material design. Fragrance-free, sweetener-free, allergen-free formulation suitable for a wide range of people from infants to the elderly.
* This product is a food (lactic acid bacteria-containing food) and is not intended for diagnosis, treatment, or prevention of diseases.
Nichinichi Pharmaceutical's lactic acid bacteria supplements use three types of lactic acid bacteria materials processed differently. All are made from the same bacterium "Enterococcus faecalis," but their properties and names differ depending on the depth of processing.
A material where Enterococcus faecalis is heat sterilized and concentrated. The bacterial body remains intact and is absorbed from the Peyer's patches in the small intestine. Used in the Protesan series (B, R, S, S3). Holds six patents.
A material where FK-23 is further enzyme treated to dissolve the bacterial cell wall and extract internal components (nucleic acids, vitamins, minerals, etc.). Used in the Chisa series (Ferna, White). Holds six patents.
A unique special processed lactic acid bacteria material from Nichinichi Pharmaceutical that combines the characteristics of both FK-23 and LFK. Used in Protesan Every II.
Compare the full lineup of Nichinichi Pharmaceutical's lactic acid bacteria supplements including Protesan R. Choose the product that suits you based on differences in materials, concentration, and formulation.
| Comparison items | FK-23 material (heat treatment) | LFK material (heat + enzyme treatment) | MK-116 (FK-23 + LFK) | ||||
|---|---|---|---|---|---|---|---|
| Protesan B | 🔵 Protesan R (this product) | Protesan S | Protesan S3 | Chisa Ferna | Chisa White | Every II | |
| Lactic acid bacteria material | FK-23 | FK-23 | FK-23 | FK-23 | LFK | LFK | MK-116 |
| Processing method | Heat treatment only | Heat treatment only | Heat treatment only | Heat treatment + enzyme treatment | Heat treatment + enzyme treatment (Both FK-23 and LFK) |
||
| Content per packet | 300 billion | 1 trillion | 4 trillion | 12 trillion | 2.2 trillion | 650 billion | 1.2 trillion |
| Yogurt equivalent | 30L | 100L | 400L | 1,200L | 220L | 65L | 120L |
| Amount per packet | 1.0g | 1.2g | 1.5g | 3.3g (soluble type) | 1.5g | 1.0g | 1.0g |
| Quantity | 31 packets | 62 packets | 62 packets | 31 packets / 186 packets | 30 packets | 30 packets | 62 packets |
| Oligosaccharides | ✅ | ✅ | ✅ | — | — | — | ✅ |
| Indigestible dextrin | ✅ | ✅ | — | — | — | — | ✅ |
| Intake without water | ✅ Allowed | ✅ Allowed | ✅ Allowed | ❌ Requires dissolution | ✅ Allowed | ✅ Allowed | ✅ Allowed |
| Allergens | Free | Free | Free | Free | Eggs | Eggs and gelatin | Eggs |
| Expiration Date | 3 years From production | 3 years From production | 3 years From production | — | 2 years From production | — | — |
| Nutritional Components | Per packet (1.2g) |
|---|---|
| Energy | 4.4 kcal |
| Protein | 0.13 g |
| Fat | 0.0084 g |
| Carbohydrates | 0.96 g |
| Salt Equivalent | 0.00049–0.0011 g |
| Potassium | 3.6–7.9 mg |
| Phosphorus | 9.0 mg |
* Some packages may display nutritional values per 2 packets (energy 8.9kcal, protein 0.25g, fat 0.017g, carbohydrates 1.9g, salt equivalent 0.0012g, potassium 13mg).
* Please consume with water or other beverages. The daily recommended amount is 2–6 packets, adjustable according to your condition and purpose. The lactic acid bacteria material is heat-resistant, so it can be mixed into warm drinks or dishes.
| Product Name | Lactic Acid Bacteria-Containing Food (Granules) |
|---|---|
| Net Weight | 74.4g (1.2g × 62 packets) |
| Lactic Acid Bacteria Content (per packet) | Equivalent to 1 trillion bacteria (equivalent to 100L of yogurt) |
| Daily Recommended Amount | 2–6 packets |
| Ingredients | Lactic acid bacteria (heat-treated) (domestically produced), oligosaccharides, indigestible dextrin, dextrin, cornstarch, guar gum hydrolysate / cellulose |
| Allergens | No use of any of the 28 specified allergenic ingredients (Allergen-Free) |
| Expiration Date | 3 years From production |
| Storage Method | Store in a cool, dry place away from direct sunlight |
| Country of Manufacture | Japan |
| Manufacturer | Nichinichi Pharmaceutical Co., Ltd. |
| Model Number | PR62 |
This product does not contain any of the 28 specified allergenic ingredients (eggs, milk, wheat, shrimp, crab, peanuts, buckwheat, walnuts, soybeans, beef, pork, chicken, gelatin, abalone, squid, salmon roe, orange, cashew nuts, kiwi fruit, sesame, salmon, mackerel, banana, peach, yam, apple, almond, matsutake mushroom). It is safe for people with food allergies from infants to the Elderly.
- This product is a food (lactic acid bacteria-containing food). It is not a medicine. It is not intended for diagnosis, treatment, or prevention of diseases.
- Follow the daily recommended amount (2–6 packets) and avoid excessive intake. Consuming large amounts will not cure diseases or enhance health.
- If you are pregnant, breastfeeding, under medical care, or taking medication, please consult your doctor before use.
- If you feel it does not suit your constitution, reduce the amount used or discontinue use.
- Do not consume products past their expiration date.
- Keep out of reach of infants and toddlers.
- Consume as soon as possible after opening.
- Maintain a balanced diet based on staple foods, main dishes, and side dishes.
- Store in a cool, dry place away from direct sunlight.
- Consume as soon as possible after opening.
- Keep out of reach of infants and toddlers.









































































