Best L-Lysine Supplements Updated May 2025
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Best L-Lysine Supplements
2025 Buyer's GuideUpdated May 2025
Advertiser disclosure About our rankings
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Best L-Lysine Supplement

10.0

1

10.0

NOW Supplements, L-Lysine (L-Lysine Hydrochloride) 500 mg, Amino Acid, 250 Tablets
Effectiveness
Value for money
Immune boost
Ease of swallow
Health benefits
Amino acid content
Best L-Lysine Supplement

10.0

1
NOW Supplements, L-Lysine (L-Lysine Hydrochloride) 500 mg, Amino Acid, 250 Tablets
Effectiveness
Value for money
Immune boost
Ease of swallow
Health benefits
Amino acid content

9.9

2

9.9

Bronson L-Lysine Defense Immune Support Complex 1500 MG L-Lysine Plus Olive Leaf, Garlic, Vitamin C and Zinc - Non-GMO, 90 Vege...
Effectiveness
Immune system
Ease of swallow
Value for money
Ingredients
10% Coupon
10% Coupon

9.9

2
Bronson L-Lysine Defense Immune Support Complex 1500 MG L-Lysine Plus Olive Leaf, Garlic, Vitamin C and Zinc - Non-GMO, 90 Vege...
Effectiveness
Immune system
Ease of swallow
Value for money
Ingredients
10% Coupon

9.7

3

9.7

L-Lysine Supplement for Cats 900mg/scoop - Cat Supplement for Sneezing and Runny Nose, Cold, Immune Support, Eye Function, and ...
Effectiveness
Health benefits
Mixability
Sneezing
Ease of use
12% Coupon
12% Coupon

9.7

3
L-Lysine Supplement for Cats 900mg/scoop - Cat Supplement for Sneezing and Runny Nose, Cold, Immune Support, Eye Function, and ...
Effectiveness
Health benefits
Mixability
Sneezing
Ease of use
12% Coupon

9.6

4

9.6

Solgar L-Lysine 1000 mg, 250 Tablets - Enhanced Absorption and Assimilation - Promotes Integrity of Skin and Lips - Collagen Su...
Quality
Immune system
Value for money
Prevents cold sore
Skin health
Lysine content

9.6

4
Solgar L-Lysine 1000 mg, 250 Tablets - Enhanced Absorption and Assimilation - Promotes Integrity of Skin and Lips - Collagen Su...
Quality
Immune system
Value for money
Prevents cold sore
Skin health
Lysine content

9.4

5

9.4

THORNE Lysine - Essential Amino Acid for Skin Health, Energy Production, and Immune Function* - 500 mg - 60 Capsules
Lysine content
Value for money
Quality
Effectiveness
Nutrient content

9.4

5
THORNE Lysine - Essential Amino Acid for Skin Health, Energy Production, and Immune Function* - 500 mg - 60 Capsules
Lysine content
Value for money
Quality
Effectiveness
Nutrient content
Best Value
Popular

9.3

6

9.3

NOW Foods Supplements, (L-Lysine Hydrochloride) 1,000 mg, Double Strength, Amino Acid, 100 Tablets
Immune system
Works well
Quality
Value for money
Health benefits
Save 35%
Save 35%
Best Value
Popular

9.3

6
NOW Foods Supplements, (L-Lysine Hydrochloride) 1,000 mg, Double Strength, Amino Acid, 100 Tablets
Immune system
Works well
Quality
Value for money
Health benefits
Save 35%

9.1

7

9.1

Quantum Health Super Lysine+ / Advanced Formula Lysine+ Immune Support with Vitamin C, Echinacea, Licorice, Propolis, Odorless ...
Effectiveness
Prevents outbreak
Lysine content
Ease of swallow
Skin healing
Save 24%
Save 24%

9.1

7
Quantum Health Super Lysine+ / Advanced Formula Lysine+ Immune Support with Vitamin C, Echinacea, Licorice, Propolis, Odorless ...
Effectiveness
Prevents outbreak
Lysine content
Ease of swallow
Skin healing
Save 24%
Premium Pick

9.0

8

9.0

Clean Nutraceuticals Amino Acids Supplement L-Lysine, L-Threonine, L-Leucine, Isoleucine, Valine, L-Histidine, L-Tryptophan, L-...
Health benefits
Amino acid content
10% Coupon
10% Coupon
Premium Pick

9.0

8
Clean Nutraceuticals Amino Acids Supplement L-Lysine, L-Threonine, L-Leucine, Isoleucine, Valine, L-Histidine, L-Tryptophan, L-...
Health benefits
Amino acid content
10% Coupon

8.9

9

8.9

Pure Encapsulations L-Lysine - Essential Amino Acid Supplement for Immune Support & Gum, Lip Health* - with L-Lysine HCl - 90 C...
Quality
Lysine content
Immunity
Ease of swallowing
Value for money
Ingredients

8.9

9
Pure Encapsulations L-Lysine - Essential Amino Acid Supplement for Immune Support & Gum, Lip Health* - with L-Lysine HCl - 90 C...
Quality
Lysine content
Immunity
Ease of swallowing
Value for money
Ingredients

8.7

10

8.7

Nutricost L-Lysine 1000mg Per Serving, 250 Servings, 500 Capsules - Gluten Free, Non-GMO, 500mg Per Capsule
Quality
Value for money
Ease of swallowing
Health benefits
Prevents cold sore

8.7

10
Nutricost L-Lysine 1000mg Per Serving, 250 Servings, 500 Capsules - Gluten Free, Non-GMO, 500mg Per Capsule
Quality
Value for money
Ease of swallowing
Health benefits
Prevents cold sore

Our Top Choice

Best L-Lysine Supplement

10.0

1

10.0

NOW Supplements, L-Lysine (L-Lysine Hydrochloride) 500 mg, Amino Acid, 250 Tablets
Effectiveness
Value for money
Immune boost
Ease of swallow
Health benefits
Amino acid content
Best L-Lysine Supplement

10.0

1
NOW Supplements, L-Lysine (L-Lysine Hydrochloride) 500 mg, Amino Acid, 250 Tablets
Effectiveness
Value for money
Immune boost
Ease of swallow
Health benefits
Amino acid content
Related Categories
Decongestant for CatsL-Lysine Supplement for CatsImmune System Supplement for CatsPure Amino Acid SupplementAmino Acid Supplement for Men
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Related Categories
Decongestant for CatsL-Lysine Supplement for CatsImmune System Supplement for CatsPure Amino Acid SupplementAmino Acid Supplement for Men
Related Categories
Decongestant for CatsL-Lysine Supplement for CatsImmune System Supplement for CatsPure Amino Acid SupplementAmino Acid Supplement for Men