Product Reviews and Information for Peptides
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Product Review
Collagen Supplements Review
See our Top Picks for Wrinkles and Joints
CL Answer
Are Peptides Such as BPC-157 and TB-500 Safe and Effective?
Find out about BPC-157 and TB-500, including what they're promoted for and if they're safe.
Product Review
Bone Broth Review
Find the Best Bone Broth for Quality, Taste, and Value. Four of 10 Products Fail to Get CL Approval.
CL Answer
Are there side effects from collagen supplements?
Find out if there are collagen side effects from supplements (collagen hydrolysate, collagen peptides, etc.) such as nausea, constipation, skin rash and others. ConsumerLab.com's answer explains.
CL Answer
Does collagen taken as a supplement help with arthritis? I'm seeing it in products for joint health.
Learn more about collagen supplements, including evidence from clinical studies on arthritis and muscle strength and safety.
Product Review
Lion's Mane and Chaga Supplements Review
Read Labels Carefully -- Many Can Mislead
Clinical Update
10/15/2019
Collagen Peptides vs. Gelatin
It has been generally believed that amino acids are more bioavailable from hydrolyzed collagen (collagen peptides) than from gelatin (which is partially hydrolyzed collagen). A new study put this to the test. See what the researchers found in the What It Is section of the Collagen Supplements Review. Also see our Top Picks among collagen supplements.
Product Review
Protein Powders and Shakes Review
Find Out Which Protein Products Passed or Failed Our Tests
Clinical Update
11/13/2025
TB-500 for Injury Recovery
Do supplements containing TB-500 help with injury recovery and are they safe? Find out in our article about BPC-157 and TB-500.
CL Answer
Conolidine: Evidence for Pain Relief, Safety, and CONOCB2™ Products Explained
Find out if conolidine, the main ingredient in CONOCB2 Blend, offers natural pain relief without the side effects of opioids. Also learn about the top conolidine products available today.
Recalls & Warnings
June 12, 2023
Vital Proteins Collagen Peptides 24 oz Recalled
On April 28, 2023, Vital Proteins issued a recall of a single batch of Vital Proteins Collagen Peptides -- Unflavored (24 oz) that were distributed to and sold by Costco. Canisters may contain broken blue pieces of plastic from a broken lid.
News Release
July 26, 2023
Best Collagen Supplements for Skin and Joints, According to ConsumerLab Tests
White Plains, New York, July 26, 2023 — Collagen supplementation may modestly reduce wrinkles and the appearance of cellulite, and moderately decrease joint and tendon pain and improve flexibility in people with osteoarthritis.
News Release
October 04, 2019
ConsumerLab Tests Reveal Best Collagen Supplements for Wrinkles and Joints
White Plains, New York, October 4, 2019 — Collagen supplements are promoted to reduce wrinkles and decrease joint pain and stiffness, but do they really work, and if so, which products on the market provide the best quality collagen and the best value? To find out, ConsumerLab carefully ...
Product Review
L-Arginine Supplements Review
Choose the Best L-Arginine Supplement. Find Out Which L-Arginine Supplement Passed CL's Tests.
Product Review
Psyllium Fiber Supplements Review
Find the Best Psyllium Fiber Supplement and Avoid Lead.
Clinical Update
9/26/2024
Collagen to Reduce Fatigue?
Did supplementing with collagen peptides reduce fatigue? Find out what a recent study showed in the Fatigue section of our Collagen Supplements Review, which includes our Top Picks for collagen.
Clinical Update
11/03/2023
Collagen For Bone Health?
Is there evidence that collagen peptides (as in Fortibone) strengthen bones? Find out in the bone health section of our Collagen Supplements Review. Also see our Top Picks for collagen for skin and joint health.
Also see: Do any supplements or diets help prevent or treat osteoporosis?
Clinical Update
2/01/2020
Collagen for Knees?
Collagen supplements have been tested in many studies to reduce pain and/or improve function in osteoarthritic knees. A recent study focused on collagen peptides. Find out if they worked (and see the results for other collagen products) in the Joint Pain section of the Collagen Supplements Review. Also see our Top Picks for collagen supplements for joint pain and for wrinkles.
Clinical Update
7/06/2019
Casein Peptides for Better Sleep?
People with difficulty sleeping were given a casein hydrolysate to see if it would help them sleep. Find out if it worked in the Casein section of the Protein Powders, Drinks and Shakes Review. Also see our Top Picks among casein and other protein products.
Product Review
Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, Boswellia, Collagen and Turmeric)
18% of Joint Health Supplements Failed to Pass Our Tests. See Which Passed or Failed, and Our Top Picks.
CL Answer
ConsumerLab’s Review of The 'Pause Nutrition Supplements by Dr. Mary Claire Haver – Are They Worth It?
Looking into The 'Pause Nutrition supplements by Dr. Mary Claire Haver? ConsumerLab examines the value of products like Omega-3 + Vitamin D3 & K2, Fiber GDX, Skin Boost Plus, and more. Find out if these supplements are worth the price and discover affordable alternatives.
CL Answer
Best Supplements to Prevent Age-Related Muscle Loss
Discover the top supplements to prevent age-related muscle loss after 60. Learn how protein, fish oil, vitamin D, and more can help maintain muscle strength and combat sarcopenia.
CL Answer
Supplements For Back Pain: What Helps, What's Hype
Some supplements may provide modest benefit for back pain, while others don't seem to work or haven't been evaluated for this use. Find out if supplements like collagen, devil's claw, PEA, pregnenolone, white willow bark, and others help.
Product Review
Probiotic Supplements Review (Including Pet Probiotics)
See What's Really in Probiotics and Our Top Picks
CL Answer
Do any supplements or diets help prevent or treat osteoporosis?
If you have osteoporosis, you may be interested in supplements or diets for bone health. Find out which can increase bone strength and density.
CL Answer
What are the health benefits of luteolin, and is it safe?
Find out if luteolin, a compound found in many fruits and vegetables, is beneficial for cancer, heart health, skin aging, age-related cognitive decline, and other conditions, and learn if it's safe.
CL Answer
What is Noopept? Can it really improve memory and cognition, and is it safe?
Learn more about Noopept, including results from clinical studies on cognition, safety, and dosage.
CL Answer
Do hair loss supplements, such as Viviscal, Hair La Vie, and Nutrafol, or topical essential oils work?
Vitamins and supplements that may help with hair loss and thinning, including saw palmetto, beta-sitosterol, protein, iron, and vitamin D.
CL Answer
Do collagen or hyaluronic acid supplements really help aging or wrinkled skin?
Find out if collagen & hyaluronic acid supplements really help for aging or wrinkled skin and for skin care.
CL Answer
Are there vitamins or supplements that can reduce my risk of breast cancer? Do any increase cancer risk?
Find out if certain vitamins, supplements and foods such as fish oil, olive oil, vitamin C and others, can help reduce the risk of breast cancer. ConsumerLab.com's answer explains.
CL Answer
What is UC-II and does it help joints?
What is UC-II (undenatured type 2 collagen - InterHealth Nutraceuticals) and do clinical studies show that it works for joint health?
Recalls & Warnings
June 22, 2023
FDA Warns Warrior Labz for Selling Products with Steroid-Like Substances and Prescription Drugs
On June 12, 2023, the FDA issued a warning letter to Warrior Labz SARMS following inspection of the company’s website and social media, which found that the company sold the following products labeled as containing steroid-like substances known as selective androgen receptor modulators ...
CL Answer
What are the best supplements for depression and anxiety?
Best natural supplements for depression and anxiety, including the evidence for fish oil, vitamin D, probiotics, and herbal supplements for depression such as curcumin (from turmeric) and saffron.
CL Answer
Do any supplements help prevent or improve cataracts?
Find out which supplements may help with cataracts, including selenium and vitamins A, B1, B3, C, and E.
Clinical Update
2/24/2013
Calcium Risk for Women
A long-term study found that women with high calcium intakes from their diets were 40% more likely to die during the study than women with moderate calcium intake. Worse, the risk of death was 157% higher for women with high dietary calcium intake who also took a calcium supplement. What should you do? Get the details in the recent update to the Calcium Supplements Review and read our latest recommendations on calcium intake in the What You Need to Know section.)
Recalls & Warnings
April 30, 2021
FDA Warns Seller of Fish Oil, Apple Cider Vinegar, Collagen, and Elderberry Supplements
On April 13, 2021, the FDA issued a warning letter to Orphic Nutrition following a review of the company's websites, which found statements made about the products Apple Cider Vinegar Capsules, Ashwagandha Capsules, Garcinia Cambogia Capsules, Premium Collagen Peptides Capsules, Elderberry ...
Recalls & Warnings
June 16, 2019
"Immune Support" Throat Sprays Recalled
On June 13 2019, APS BioGroup, Inc. issued a recall of four "immune support" throat sprays because they have the potential to be contaminated with Stenotrophomonas maltophilia, a bacteria that can cause respiratory infection, particularly in individuals with weakened immune systems.
Recalls & Warnings
July 13, 2023
1st phorm Level-1 Protein Supplements Recalled Due to Staph Risk
On June 21, 2023, International Food Companies DBA International Food Products recalled two protein supplements due to potential contamination with Staphylococcus aureus.
Recalls & Warnings
January 10, 2024
Spring Valley Biotin & Collagen Liquid Recalled Due to Mold
On December 1, 2023, BioMylz Pvt. Ltd. issued a recall of 24,324 units of Spring Valley Biotin & Collagen Liquid Natural Berry Flavor products due to potential mold contamination. BioMylz is the contract manufacturer for the Spring Valley product, which is a Walmart-owned brand.
Recalls & Warnings
October 19, 2023
Jay Robb Protein Powder Recalled
On October 13, 2023, Select Custom Solutions recalled one lot of Jay Robb Vanilla Flavored Egg White Protein 24 oz because the product may contain hard, plastic, foreign material which could pose a choking hazard. No adverse events have been reported to date.
Recalls & Warnings
November 29, 2019
FDA Warns Seller of "All Natural" Treatment for Opioid Withdrawal, Migraines & More
On November 18, 2019, the FDA issued a warning letter to EPH Technologies, Inc., following a review of the company's websites, which found statements made about some of the company's products, including Detoxoplex, Sinople, and Migrenz, to be drug claims.
Recalls & Warnings
June 13, 2024
Suntegrity Tinted Sunscreen Lotion Recalled Due to Presence of Mold
On June 11, 2024, Suntegrity Skincare issued a recall of nine lots of Suntegrity Impeccable Skin Sunscreen Foundation (Multiple Shades) after discovering that certain products had higher than acceptable levels of mold, specifically the Aspergillus Sydowii species, which can cause ...
Recalls & Warnings
April 16, 2012
Protein Supplement Maker Fails FDA Audit -- Many Products Affected
The FDA sent a Warning Letter (dated April 2, 2012) to Theta Brothers Sports Nutrition, Inc. regarding numerous violations of good manufacturing practices at its Lakewood, New Jersey facility.
