[Dr. Bi가] Colostrum Protein Pet Milk (8g x 30 packets)
Products to buy together
Dr.BY
Find the Answer at Dr.BY for Gradually Decreasing Immunity and Strength!
COLOSTRUM PROTEIN 3.0
Colostrum Protein
[Image: Product box and a green sachet labeled "Colostrum Protein 8g" with a dog silhouette, and a photo of a small black and white long-haired dog]
Net weight 240g (8g x 30 sachets)
2026 Brand of the Year · Awarded 3 Consecutive Years
Pet Nutritional Supplement
Awards and Recognitions:
* Organizer: Korea Consumer Forum
* Award: 2023 Brand Customer Satisfaction Award
Pet Nutritional Supplement Category 1st Place
* Organizer: Korea Consumer Global Association
* Award: 2024-2026 Korea Global Consumer Brand Award
Brand of the Year 1st Place for 3 Consecutive Years
[Image: Three gold award medals and a large golden number 1 trophy]
*This product is not a medicine for therapeutic purposes.
[Image: A small black and white dog licking a green and beige colostrum protein stick held by a person's hand]
COLOSTRUM PROTEIN 3.0
Colostrum Protein
- May help boost immunity
- May help improve muscle strength
- May aid hydration and normal bowel movements
Reference: According to the guidelines for permissible and excessive claims and advertising for pet animal feed
*This product is not a medicine for treatment purposes.
Formulated Ingredients Developed for Immunity and Muscle Improvement
Contains colostrum powder that supports immunity and fractionated whey protein that helps muscle improvement.
Trusted Manufacturing Process
Carefully manufactured at FDA, ISO, HACCP certified facilities.
Perfect Taste Even for Picky Eaters
Convenient daily dose with highly absorbable protein!
SINCE 2021
3rd Generation Plus Colostrum Protein
Colostrum Protein 1.0
<2021 ~ 2023>
First in the country to develop a protein stick with restricted meat content
Colostrum Protein 2.0
<2023 ~ 2025>
Applied "Lysin", a core material for protein synthesis
Colostrum Protein 3.0
<2025>
Developed by Gyeonggi-do Agricultural Technology Institute
New product self-developed material
Contains "Hydrolyzed Soybean Lysin Complex"
Colostrum Protein 3.0 Plus
Dr.BY COLOSTRUM PROTEIN 3.0
Colostrum Protein
Health product 240g (8g x 30 sticks)
[Image: Box and stick pack of Colostrum Protein 3.0 Plus for dogs]
<2025~>
- High-purity protein "Fractionated Soy Protein" applied, with fats and carbohydrates removed
- Improved digestion and absorption rates
Raw Material Characteristic: The color is lighter than the previous formulation.
You can give it with confidence as it is a natural color.
[Image: Two close-up images of a product labeled "DAILY CARES." The left image shows "Colostrum Protein 3.0" with a darker color. The right image shows "Colostrum Protein 3.0 Plus" with a lighter color, indicating the color difference described above.]
[Information about ingredients to aid understanding, not product information]
What is Leucine applied in Ultra Protein 3.0 Plus?
[Image: Molecular model of leucine]
"Leucine" is known as a key component in protein synthesis as it directly metabolizes in muscles. It is not produced inside the body and must be consumed directly.
*The above content is a general explanation about the ingredient.
<Source: Research: The Role of Leucine in the Regulation of Protein Metabolism>
Feel the Difference Before and After Feeding!
30-Day Review from Real Buyers for the N-th Time
[Image: A hand holding a green sachet labeled "COLOSTRUM PROTEIN"]
My puppy eats this protein supplement for muscle strengthening very well. After intensive leg muscle treatment at the hospital, the muscle in my puppy’s leg is six times stronger than that of an average puppy, so I feel great.
- dbm2****
I bought this with some concern because my dog’s muscles had weakened after leg surgery, but after one month of feeding, the muscles have become firm and full again. My puppy is very small, weighing less than 2kg, but when I mix this with its feed, it eats it like a vacuum cleaner, so I’m very satisfied! It eats well and its muscles are improving. Highly recommend!
- rkrx****
My dog is 7 years old but can’t refuse it! Since it’s a chew type, it’s easy to eat and has no resistance. Especially when mixed well with medicine and protein when giving medicine, my dog doesn’t notice and eats it easily and deliciously, which I like a lot.
- redd*******
After feeding this Doctor Buy product, my dog became very lively and its condition greatly improved. The effect is amazing. My dog is 12 years old, so I wonder why I only found out about this now. Don’t hesitate; buy it quickly.
- bkw6***
I've been feeding this consistently every day for 2 months and it has gotten better than I expected. My 13-year-old old puppy used to struggle walking on walks, but lately the strength in its hind legs has noticeably improved.
- 7511****
※ These reviews are based on real customer feedback from the Naver brand store, written after more than one month of feeding, representing partial reviews from 2024-2025.
※ This product is not a medicinal product for therapeutic purposes.
[Image: Multiple dogs eating from green packets labeled "COLOSTRUM PROTEIN" showing variety of dog breeds enjoying the product.]
Source: Naver Shopping review images
2 out of 3 customers repurchase!
Customer ratio
First-time customers 34.3%
Repeat customers 65.7%
*Source: Cafe24 e-commerce platform
Doctor Buy official 6-month purchase data (based on completed payments from May 2025 to October 2025)
If customers are not satisfied with the product, they do not repurchase.
The 65.7% repurchase rate proves the value of 'Doctor Buy'.
Dr. BY × Amazon × Shopee
Amazon · Shopee Recognized Brand, Dr.BY
Chosen by guardians in 13 countries worldwide
Amazon
First in the U.S.
Ranked #1 for 22 consecutive weeks in Japan
[Categories: #1 New Releases in Cat Supplements & Vitamins, Probiotics, Multivitamins]
Japan: Pet supplements category
Shopee
First in Korea Brand
Ranked #1 for the first time
2025 62nd Trade Day
Top Export Award in the Republic of Korea
Shopee Customer Reviews
Vietnam
Convenient product, my baby loves it. Will support long term. After buying, I will message the shop.
My dog likes it. I will buy consistently.
Singapore
She loves it so much, try 1 pcs. And she wants more.
My dog likes it so much. She asks for one more after eating one.
Philippines
My dog loves it; it treats her well as per my pet show improvement especially on its appetite! Will order again, thanks a lot!
My dog ate very well though she had no appetite before, but now she is better!
Taiwan
My sister likes it very much. I think it should be delicious. Eat a lot of health and strength. I don’t worry. My sister is very picky. My family is very delicious.
She eats well! She gained much health and strength!
Amazon Customer Reviews
USA
Life-saving product that is fantastic! We tried feeding anything imaginable without success until this. It’s been three weeks and my dog is healthier than ever.
She has more energy now, plays fetch again, is returning to healthy weight and behavior. Highly recommend this product!
This product is fantastic! She has more energy and is returning to a healthy weight. So happy!!
USA
My dog likes these treats. They are easy to open and put on his food. The ingredients appear to be high quality, containing colostrum and expected benefits with goat and human forms of the substance. It smells mildly but seems safe.
The ingredients quality is good. It has all benefits expected from colostrum.
USA
I got these and another one from the same brand. They seem to improve their health and have no smell. They have lots of energy after taking one but no diarrhea or side effects. They are long in size like a popsicle and must be chewed so they don’t get stuck.
After eating, my dog has more energy! No digestion issues.
USA
My dog liked this item but took a few tries before liking it. Now he eats every time I give it to him. I just squeeze on top of his food and he eats it quickly.
He likes it but took some time, now eats well every time. Just sprinkle on food.
‘Dr.BY’ is a brand exported worldwide to 13 countries!
[Exporting countries: U.S., Japan, Canada, Mexico, Singapore, Malaysia, the Philippines, Thailand, Vietnam, Brazil, Taiwan, Hong Kong, China]
Health Information for Better Understanding, Not Product Information
Aging in Puppies and Various Changes
Exposure to Diseases
Weakened immunity leads to exposure to various diseases!
Decreased Activity
Loss of muscle strength leads to difficulty walking well and weight gain!
Changes in Fur and Skin
Fur loses moisture and falls out, making skin conditions more likely!
Average Age of Developing Cataracts: 6.5 Years
[Image: Two illustrations of a dog in side profile. The left dog appears slender. The right dog is shown with arrows indicating measurements: one vertical arrow along the torso, and two arrows pointing inward at the hind leg area.]
Fat accumulates and muscle strength decreases.
[Health information provided for understanding, not product information]
Decreasing Muscle Mass in Companion Dogs with Age
[Image: A line graph showing lean body mass in grams decreasing as companion dogs age from 6 to 16 years, with a highlighted note indicating a 1/3 reduction in muscle mass.]
[Image: Two cross-sectional illustrations of thigh muscles in companion dogs. The left labeled "Healthy Companion Dog" shows larger muscle area (근육) and less fat (지방). The right labeled "Aged Companion Dog" shows reduced muscle area and increased fat.]
Muscle Aging = Sarcopenia
The amount of fat-free mass in companion dogs decreases by 2 to 3% every year!
The loss of muscle accelerates rapidly as muscle mass decreases.
*Fat-free mass: muscle excluding fat from body weight
Source: Penell et al. Acta Vet Scand (2019) 61:42 / Study on Labrador Retrievers
This is scientific evidence cited from academic literature; this product is not a medicinal product for treatment purposes.
[Health information to aid understanding, not product information]
Indoor lifestyle! Insufficient exercise! The same food every day!
Causes of Muscle Loss
Muscle Loss
Decrease in Activity
Decrease in Muscle Mass and Strength
Promotion of Muscle Breakdown from Secondary Chronic Disease
Immunity↓
Quality of Life↓
Mortality Rate↑
Pets need 4 times more protein than humans!
Protein is an essential component not only of muscles but also of antibodies, hormones, and enzymes!
Source: Korean J Med 2012;83(4):444-454
This is scientific evidence from academic literature and this product is not a medicinal drug for treatment purposes.
[Image: Photo of Dr. BY COLOSTRUM PROTEIN 3.0 product boxes and an 8g stick pack]
Different Feeling at the Same Age!
“Colostrum Protein” Care
[Image: Illustration of two dogs, one appearing heavier and the other slimmer]
As your pet ages, supplementing with high-quality protein that has excellent absorption and utilization in the body becomes even more important!
[Health information for understanding, not product information]
Optimal Pormuller to Support Immune & Muscle Functions
Fractionated Whey Protein
May help improve muscle strength
Colostrum Powder
May help support immunity
Oligosaccharide
May help promote smooth bowel movements
*This is scientific evidence from academic literature, and this product is not a medicine for treatment purposes.
Energy Metabolism, Muscle Generation, and Water Metabolism are Essential!
Protein + Water Balance = Colostrum Protein
(Water 85.0%, Protein 1.5% or more)
Amino Acids (Protein) intake
→ H2O (Water) →
Protein synthesis
→ H2O (Water) →
Muscle Tissue generation
[Health information for better understanding, not product information]
Is your child gaining weight constantly?
Insufficient protein supply! Lack of muscle mass!
[Muscle 1kg]
13kcal consumption
VS
[Fat 1kg]
4.5kcal consumption
[Raw material information for better understanding, not product information]
Colostrum that helps maintain immunity and improve muscle mass
- Immune factors (IgG1, IgM, IgA)
- Rich in protein (5 times more than regular milk)
- Growth factors (IGF, EGF)
Immune & muscle health components abundant in colostrum
(g/L)
- Protein
- IgG1
- IgM
- IgA
Colostrum
- 150
- 75.0
- 4.90
- 4.40
Whole milk
- 30
- 0.35
- 0.04
- 0.05
Comparison (x times)
- 5 times
- 214 times
- 122 times
- 88 times
Sources: Composition and properties of bovine colostrum: a review, Dairy Sci.& Technol, (2016) 96:133~158. Colostrum and milk-derived peptide growth factors for the treatment of gastrointestinal disorders 1-4 Am J Clin Nutr 2000;72:5~. FAO small-scale dairy farming manual volume 1. Milk composition, at birth. Foundation for alternative and integrative medicine Agri. Review, 32(2) : 79-90, 2011
Colostrum contains IGF-I, a growth factor in abundance, which helps reduce body fat while increasing strength and muscle mass, and aids in improving immune function.
Source: Cur Res Nutr Food Sci. Jour., vol.1(1), 37-47 (2013)
Fat (%)
Before intake - After intake (8 weeks)
Lean body mass (kg)
Before intake - After intake (8 weeks)
Immune factor changes
Week 0 - Week 40
Legend: Control groupColostrum intake group
Source: British Journal of Nutrition (2013), 110, 2216-2221 Nutrition 17(3), 2001
Confirmed reduction of body fat and increase in muscle mass and immune factors in the colostrum intake group
This data is not for pets and is provided only as a safety reference.
<Scientific research literature; this product is not intended for medical treatment or pharmaceutical purposes.>
[Raw material information for understanding, not product information]
Whey protein that helps strengthen muscles and prevent muscle loss
As a pure protein with fats and sugars removed, it offers a higher increase in pure protein within tissues compared to other dietary proteins.
Protein content (%)
- Whey protein: 11 ~ 14.5%
- Milk protein concentrate: 25 ~ 89%
- Whey protein isolate: 90 or higher
Source: Journal of Sports Science and Medicine (2004) 3, 118-130
Is Eating a Lot of Meat Enough to Ensure Sufficient Protein Intake?
Have you considered the quality of protein, which is as important as the amount of protein?
Protein Utilization Related Indicator
[Image: Bar graph comparing protein utilization for Whey Protein, Soy Protein, Egg, Milk, Casein, and Beef]
PER (Protein Efficiency Ratio)
[Image: Bar graph comparing PER for Whey Protein, Soy Protein, Milk, Casein, and Beef]
PDCAAS (Protein Digestibility Corrected Amino Acid Score)
[Image: Bar graph comparing PDCAAS scores for Whey Protein, Soy Protein, Egg, Milk, Casein, Beef, and Lentil]
BCAA Content
[Image: Bar graph comparing BCAA content for Whey Protein, Soy Protein, Egg, and Milk]
Source: U.S. Dairy Export Council
This information is not intended for companion animals and is provided only as safety reference material. <These scientific data are based on academic literature, and the product in question is not a therapeutic medicine.>
[For better understanding, this is raw material information, not product information]
Whey Protein That Supports Good Gut Health and Digestion
Digestion Time
[Whey Protein]
Fat Particle Size: 1
20 minutes
[Milk]
20 times larger
2 to 3 hours
Source: J. Milk Sci. Biotechnol. 2016; 34(4):217-229
Oligosaccharide Content
[Image: Bar graph comparing oligosaccharide content—Whey Protein has 8 times more than Milk]
Source: International Dairy Journal (2006), Unit: g/L
Whey protein, similar in composition and structure to breast milk, has smaller particle size and does not cause fat accumulation in the body. It is rich in oligosaccharides, making digestion easier!
Source: J. Milk Sci. Biotechnol. 2016;34(4):217-229 | International Dairy Journal (2006), Unit: g/L
This information is not intended for companion animals and is provided only as safety reference material. <These scientific data are based on academic literature, and the product in question is not a therapeutic medicine.>
Functional Ingredients and Origins Within the 3 Core Raw Materials of Colostrum Protein
Colostrum (USA)
Contains immune and growth factors (IgG, IgA, IGF, proteins)
Isolated Whey Protein (USA)
Contains high-purity protein over 90%
Goat Milk (Netherlands)
Manufactured in GMP, IFS international food quality assurance certified facilities
Sodium: 0.05% (500 ppm)
Calories: 9.18 kcal / 1 packet (8g)
High in protein!
Low in calories!
No worries about sodium!
[Image: Certificates with a stamp reading "Heavy Metal Test PASSED" in red]
6 FREE
NO Meat
NO Artificial colors
NO Flavor enhancers
LOW Allergy
NO By-products
LOW Sodium
Dr. BY Colostrum Protein is made with honesty.
It does not contain grains that increase calories, so you can feed it more healthily.
Made meticulously using colostrum protein and scientifically verified ingredients!
[Image: A close-up of a yellowish product in a green Daily Cares stick packet]
Due to the natural properties of the ingredients, color changes and clumping of particles may appear like spots or texture.
[Image: A small black and white dog eating a yellowish treat from a green Daily Cares stick packet]
“Colostrum protein” is a versatile product that can be used for daily nutritional management and as a snack alternative.
Since puppies and cats are clearly different beings, Dr. 바이 does not develop joint-use products.
'Dr. 바이 Affiliation'
Developed by specialized researchers including veterinarians and PhDs
In a state-recognized 'In-house Corporate Research Institute,' Dr. 바이 conducts direct research using 'research equipment owned by Dr. 바이.'
[Image: Certificate of recognition for in-house corporate research institute]
[Image: Veterinarian examining a dog]
[Image: Researchers working with laboratory equipment]
Manufacturing Process
[Image: Three manufacturing process photos showing mixing, autoclaving, and packaging machines]
[Image: Inspection certificates with a red stamp that reads "Sterilization Safety Inspection PASSED"]
Doctor 바이 ultra-microprotein products are manufactured in production facilities that have completed the Sterilization Safety Inspection!
ISO Certification
Research and Development Department Certification
TCB Excellent Technology Company Certification
Venture Business Confirmation
HACCP Certification
U.S. FDA Facility Certification
"Super whey protein" does not artificially add meat protein, trans fat, or sodium.
Doctor Bio is safely manufactured by a functional food specialized manufacturing company that has received FDA, ISO, HACCP certifications.
COLOSTRUM PROTEIN 3.0
Colostrum Protein
Volume: 240g (8g x 30 packets)
Ingredients and Nutrient Content
- Crude Protein: 4.0% or more
- Crude Fat: 0.5% or more
- Calcium: 0.02% or more
- Phosphorus: 0.05% or more
- Crude Fiber: 2.50% or less
- Crude Ash: 2.20% or less
- Moisture: 79.0% or less
Ingredients
Sweet Potato Paste, Purified Water, Fructooligosaccharide, Soy Protein Isolate, Korean Red Ginseng Powder, Colostrum Powder, Soy Protein Concentrate, Lysine, Milk Powder
Shelf Life
Up to 24 months from the date of manufacture.
Note: Nutrient content may decrease during long-term and high-temperature storage. Avoid direct sunlight and store in a cool, dry place.
Core Ingredients and Amounts (mg)
- Milk Protein Concentrate: 7,200 mg or more
- Colostrum Powder: 7,200 mg or more
- Lysine: 1,650 mg or more
- Milk Powder: 1,440 mg or more
Feeding Instructions
- Body Weight < 4 kg: 1 packet per day
- 4 kg to < 10 kg: 2 packets per day
- 10 kg or more: 3 to 4 packets per day
[Note]
- This product is not a medicine intended for treatment.
- Suitable for consumption even if there are no stomach or liver issues.
[Image: Product packaging showing a green packet labeled "COLOSTRUM PROTEIN" and a box with a silhouette of a dog.]
Product Information Notice
Product Name
Milk Protein
Ingredient Registration Number
No. 55VZN0374
Country of Manufacture
Republic of Korea
Manufacturer
Pet One Co., Ltd.
Customer Service Center
031-281-0315
Precautions
- Do not feed to young pets under 3 months old.
- Store in a dry, shaded place away from moisture, pests, and direct sunlight.
- Adjust the feeding amount according to the size and activity level of your pet.
- This is a snack exclusively for pets; do not feed as a main meal or for other uses such as training treats.
- Effectiveness for prevention or improvement functions as labeled may not always be guaranteed.
- Do not feed if external damage or deterioration is suspected.
- After opening a stick pack, feed immediately and refrigerate remaining portions; consume leftover within the same day.
- Be cautious of sharp edges on the ends and cut surfaces of the sticks.
- Do not heat stick packaging directly in the microwave.
- Do not feed to semi-wild animals.
- If your pet has allergies, verify ingredients before feeding.
- If vomiting or diarrhea occurs after feeding, discontinue feeding and monitor for about half a day; if symptoms persist, consult a veterinarian.
California Proposition 65
This warning is provided in accordance with California law. For more information, please visit www.p65Warnings.ca.gov/food
Review
Some reviews contain AI-generated translations.
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