Search  for anything...

Proteinex Core Liquid Protein 18g, Collagen Peptides, Cherry 30 Fl Oz

  • Based on 461 reviews
Condition: One-time purchase
Checking for the best price...
$33.72 Why this price?
Save $1.27 was $34.99

Buy Now, Pay Later


As low as $8 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable due to Food safety reasons

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Oct 23
Order within 5 hours and 4 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Flavor Name: Cherry - Core


Size: 30 Fl Oz (Pack of 1)


Features

  • Liquid Hydrolyzed Protein
  • OUR PROTEIN COMES FROM COLLAGEN NOT WHEY: Hydrolyzed liquid collagen has the highest absorption rate compared to tablets, powders and capsules making it more efficient; Collagen is one of the most important nutrients needed to to ensure the health and vitality of your skin, hair, tendon, cartilage, bones, and joints
  • HOW TO TAKE: Great tasting flavors ready to mix with food, water, juice, smoothies, or your favorite beverage; You can also drink it as is no mixing required! Also ideal for tube feeding as it does not club feeding tubes
  • NO PROPRIETARY BLENDS, KETO & PALEO FRIENDLY, DAIRY, GLUTEN & GMO FREE, CONTAINS TYPE I & III COLLAGEN

Product Dimensions ‏ : ‎ 10 x 2.5 x 2.7 inches; 1.65 pounds


Item model number ‏ : ‎ 5485951530


Date First Available ‏ : ‎ May 14, 2019


Manufacturer ‏ : ‎ Llorens Pharmaceutical International Division, Inc


Best Sellers Rank: #21,692 in Health & Household (See Top 100 in Health & Household) #72 in Sports Nutrition Ready to Drink Protein


#72 in Sports Nutrition Ready to Drink Protein:


Customer Reviews: 4.2 4.2 out of 5 stars (461)


Brand Name: Proteinex


Primary Supplement Type: Collagen


Item Form: Liquid


Diet Type: Keto


Product Benefits: Protein Support


Age Range Description: Adult


Container Type: Bottle


Dosage Form: Liquid


Supplement Formulation: Individual Supplement


UPC: 054859525306


Manufacturer: Llorens Pharmaceutical International Division, Inc


Model Number: 5485951530


Manufacturer Part Number: 5485951530


Unit Count: 30 Fluid Ounces


Item Weight: 1.7 pounds


Item Dimensions: 10 x 2.5 x 2.7 inches


Number of Items: 1


Flavor: Cherry - Core


Special Ingredients: Hydrolyzed Collagen Peptides Type I and II


Material Features: Sugar Free


Material Type Free: Sugar Free


Specific Uses For Product: Recovery, Wound Healing, Skin Health, Hair Health, Tendon Health, Cartilage Health, Bone Health, Joint Health, Protein Support


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 23

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Quality and Taste!
Flavor Name: Cherry - Core Size: 30 Fl Oz (Pack of 1)
I’ve purchased this protein multiple times due to its effectiveness. This product provides a high concentration of protein in a small dose, which is perfect for meeting my daily protein needs without having to consume large amounts of food or drink. The liquid form makes it easy to take, even on busy days. The hydrolyzed protein is very easy on the stomach. I haven’t experienced any digestive issues, which is a big plus for me. It’s great for people who need to get their protein intake without any gastrointestinal discomfort. The liquid format is very convenient. I can take it on the go, and it’s easy to measure out the right dose. This convenience has made it a regular part of my daily routine, especially when I’m traveling or have a hectic schedule. The taste is surprisingly good for a medical-grade supplement. It’s not too sweet or artificial, making it easy to take regularly. I actually look forward to taking it, which is rare for supplements! ... show more
Reviewed in the United States on November 26, 2024 by Valoree Armstrong

  • Great Way for Extrs Protein
Flavor Name: Cherry - Core Size: 30 Fl Oz (Pack of 1)
I’ve been using this product since I had shoulder replacement. 8/29/25 I believe I feel better and healed faster. Extra protein after surgery is suggested. It tastes great as well.
Reviewed in the United States on May 29, 2026 by C Z's

  • I like it
Flavor Name: Cherry - Core Size: 30 Fl Oz (Pack of 1)
I like the ease of the product & how easy it is to get my protein & collagen in just 2 tbsp. It is thick like honey, and the cherry flavor can be medicinal at times, but nothing bad, it’s tolerable. I’ll continue to use & will be trying other flavors to.
Reviewed in the United States on January 3, 2024 by sdftx

  • Good punch of protein in a small qty
Flavor Name: Cherry - Core Size: 30 Fl Oz (Pack of 1)
A great way to get your last bit of protein on those days you just aren't feeling it. I use a lg water bottle & ice & shake it up. I like both watermelon & cherry flavors. Taking in a shot form reminda me as a tart - sweet/sour twang, so I prefer mixing with water. I just cant do the whey protien, so happy when a friend told me about this! ... show more
Reviewed in the United States on March 4, 2026 by AM-A-Zon buyer

  • I really really wanted to like this
Flavor Name: Cherry - Core Size: 30 Fl Oz (Pack of 1)
I got the cherry flavor. I love Cherry everything! To get such an important supplement in a small quantity sounded great! I don’t know how people say this tastes good though. It does have a cherry flavor, but such a strange flavor that goes along with it and horrible after taste. I could not handle it pure. I mixed it with water and got it super cold. I was able to get it down, but not sure I want more. It’s really not good… ... show more
Reviewed in the United States on October 5, 2024 by Erika E.

  • Great product
Flavor Name: Cherry - Core Size: 30 Fl Oz (Pack of 1)
This is the best product ever I have been taking the for years now when you don’t get enough daily protein in I think people should take this product I take this about three times a day this helps make your hair look so healthy as well after a month but you have to take it consistently it also will give you energy as well. ... show more
Reviewed in the United States on August 25, 2026 by Christy stanley

  • Benefits yes, Texture thick like honey
Flavor Name: Cherry - Core Size: 30 Fl Oz (Pack of 1)
Really think like honey texture, mixing it with something like juice is a little difficult unless you have mechanical means. Even then though it just makes it last longer. You are better off doing it as a shot straight up
Reviewed in the United States on June 29, 2026 by Am@zon Reviewer2020

  • Great help with my Blood Sugar
Flavor Name: Cherry - Core Size: 30 Fl Oz (Pack of 1)
I was diagnosed as a diabetic in 1969, yes 1969, & chose to take care of it by diet, exercise & with Twinlab LPP Regular Hydrolyzed Collagen Protein. However, that protein has been off the market for some time now & I've been searching to find a non whey protein & this Protein is perfect for what I want & need. I take one Tablespoon right after eating breakfast then checked my blood sugar 2 hours later & seen how well it does keeping my blood sugar in high 90's or very low 100's depending on what I ate. Or take I it after a high Carb meal, which is rare for me to eat & find I'm still a NON diabetic but at age 76 with a Grandma, Aunt, Dad, Mom, brother, 1 sister & nephew who died from diabetes related illness & another sister on insulin, I'm grateful for this product so I might stay Diabetic free as I've yet to take pills or Insulin. Insulin is a protein chain or peptide hormone so figure this is why it helps. But must test if one chooses to try it so it doesn't drop the Blood Sugar to low. And NO guarantees it will work for everyone this way. Like myself I had to try many proteins to find the one that worked as the first one that did work was recommended by a doctor. Just so Happy I didn't give up & found this one. ... show more
Reviewed in the United States on November 15, 2019 by Wesley F. Price

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...