Lysine

Generally Safe OtherSynthetic

Lysine is a synthetic other used in dietary supplements. Safety rating: Generally Safe. It is generally considered safe for most people at standard doses. Found in 6 supplements in the GoodSupp database. Lysine is an essential amino acid.

6 Products use this
Generally Safe Safety rating
Other Category
No Natural origin

Safety Verdict: Generally Safe

This ingredient is rated generally safe for use in dietary supplements.

What is Lysine?

Lysine is an essential amino acid.

Common Names Lysine, L-Lysine
Type Other
Origin Synthetic / Manufactured
Safety Rating Generally Safe

Why is Lysine used in supplements?

It is included for its nutritional value.

Role in supplements: Other — serves a functional role in supplement formulation.

Should you be concerned about Lysine?

Generally no. Lysine is considered safe for most people at typical supplement doses. Some individuals may want to be aware of minor sensitivities.

Low risk. Generally safe for most people in supplement amounts.

Top-rated products containing Lysine

These 6 highest-scoring supplements in our database use Lysine.

Solaray Calcium Citrate Supreme™, 180 Capsules
Solaray Calcium Citrate Supreme™, 180 Capsules
Product 80 Brand N/A
Birdman Falcon Organic Plant Chocolate Protein Powder
Birdman Falcon Organic Plant Chocolate Protein Powder
Product 70 Brand N/A
Vanilla Marine Collagen & Hyaluronic Acid Beauty Protein Dietary Supplement
Vanilla Marine Collagen & Hyaluronic Acid Beauty Protein Dietary Supplement
Product 62 Brand N/A
Full Circle Market Whey Protein Powder
Full Circle Market Whey Protein Powder
Product 60 Brand N/A
Femfuelz Whey Protein
Femfuelz Whey Protein
Product 60 Brand N/A
Zammex Hydrolyzed Bone Broth Protein
Zammex Hydrolyzed Bone Broth Protein
Product 59 Brand N/A
Related Ingredients
3-0-Ethyl Ascorbic Acid Generally Safe 3-O-Ethyl Ascorbic Acid Generally Safe Acetyl Glucosamine Generally Safe Acetyl Hexapeptide-8 Generally Safe Adenosine Generally Safe Adhesive Caution Alanine Safe Alfalfa Leaf Generally Safe
Frequently Asked Questions
Is Lysine safe in supplements?

Lysine is rated generally safe for most people at amounts commonly found in supplements. While the overall safety profile is favorable, some individuals may experience minor sensitivities. In GoodSupp's database, 6 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Lysine and why is it in my supplement?

Lysine is an essential amino acid. It appears in 6 products in the GoodSupp database.

Is Lysine natural or synthetic?

Lysine is synthetically produced, meaning it is manufactured through chemical processes rather than directly extracted from natural sources. Synthetic ingredients are extremely common in supplements and are not inherently less safe than natural alternatives. In many cases, synthetic production allows for higher purity and more consistent quality. The FDA regulates both natural and synthetic supplement ingredients under the same safety standards. GoodSupp rates ingredients based on their actual safety data regardless of whether they're natural or synthetic.

Check Any Supplement's Ingredients

Scan a barcode with GoodSupp to instantly see safety ratings for every ingredient.

Download on App Store
Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.