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Pro-Rite

Carlson
4.9
★ ★ ★ ★ ★
(850 ratings)
Proline 500 mg
Lysine 500 mg
Product Image
Score93

A dual-amino acid formula that provides the foundational building blocks for collagen and structural tissue health.

How scoring works
Quantity:90 Capsule(s) • (45 servings)
Goals:
Bone Health
Hair Health

Score 93

A dual-amino acid formula that provides the foundational building blocks for collagen and structural tissue health.

How scoring works

Also available as

1 option
200 servings Lysine 500 mg, Proline 500 mg • 200 Capsule(s) • 100 servings $33.92 ($0.33 per serving)
$16.07($0.35 per serving)
iHerb
$ 16.07
Pure Formulas
$ 16.07
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Analysis

This supplement provides 500 mg each of proline and lysine, which are the primary amino acids needed to form the collagen scaffolding in your body. This combination is particularly useful for supporting the organic protein matrix in bones and improving the strength of hair shafts.

Using lysine monohydrochloride ensures that the nutrients are stable and well-absorbed by the body for tissue repair. I recommend this for patients who want to support their structural health and skin elasticity from the inside out.

Pros

  • Synergistic collagen support
  • Supports bone matrix protein
  • Helpful for hair shaft strength
  • High-quality Carlson brand

Cons

  • Moderate price point
  • Requires two capsules per serving
  • No added mineral cofactors

Warnings

  • Monitor for mild stomach upset
  • Ensure adequate Vitamin C intake
  • Consult a professional if you have kidney issues

Nutrient quality

92 Highest impact

The combination of proline and lysine directly targets the primary amino acids required for collagen structure. Bioavailability is ensured through the stable monohydrochloride form of lysine.

Ingredient transparency

97 Highest impact

Labeling clearly identifies both active amino acids and their specific quantities per serving. Transparency is maintained through the avoidance of proprietary blends, allowing for precise tracking of intake.

Customer satisfaction

94 Highest impact

User ratings are exceptionally strong, indicating high satisfaction with the product's quality and effectiveness. Positive feedback suggests that the amino acid combination is well-received for structural and hair support.

Value for money

86 Highest impact

The price per serving reflects the synergistic value of providing two key structural amino acids together. This product provides high nutritional value for individuals focusing on collagen-dependent health goals.

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Goals

Bone Health
Impact
High effect
B+ Goal FitB+ Strength of SupportC- CoverageA Formula Quality

Features a targeted combination of L-proline and L-lysine to support the organic protein matrix and collagen formation. These amino acids are essential for building the scaffolding necessary for bone mineralized tissues.

Lack of structural minerals or signaling cofactors prevents the formula from addressing mineralization or transport pathways. It serves as a specialized matrix supplement rather than a complete bone health tool.

View goal →
Hair Health
Impact
High effect
B Goal FitB+ Strength of SupportC- CoverageA Formula Quality

L-Lysine and L-Proline provide essential amino acid building blocks for collagen production, which may contribute to the strength of the hair shaft. L-Lysine specifically supports iron absorption, which is a critical factor for maintaining a healthy hair cycle.

Supplementing with these amino acids appears well-aligned for individuals focusing on structural hair integrity and follicle support. These building blocks may contribute to improved hair tensile strength and reduced breakage.

View goal →

Ingredients

IngredientAmount per serving
L-Proline
500 mg
L-Lysine (Lysine Monohydrochloride)
 500 mg
Gluten Free Adults 18–50
Report overview
Proline · 500 mg OverallScore95
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value
This targeted supplement combines L-Proline and L-Lysine, the two most critical amino acids for collagen structure. At 500 mg per serving, it provides a highly effective dose for skin and connective tissue support. It is a high-potency choice from a brand known for its exceptional purity and quality.
View ingredientView products
Lysine (Lysine Monohydrochloride) · 500 mg OverallScore72
B+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyF Value
This supplement combines bioavailable lysine and proline for targeted collagen and tissue support. It is a high-quality choice for individuals focusing on structural health and skin integrity.
View ingredientView products
92 Value

Pro-Rite

Carlson
4.9
★★★★★
(904 ratings)
This bulk packaging of the same formulation provides the foundational proline and lysine blend at a more sustainable price for long-term use. It ensures a consistent supply of collagen precursors for bone and skin tissues.
Other sellers (1)
94 Value

L-Lysine 1000 mg

AN Amazing Nutrition Amazing Formulas
4.8
★★★★★
(328 ratings)
Providing a robust 1,000 mg dose in a high-volume format ensures a very long-term supply of structural nutrients. It represents excellent value for individuals who require high-strength amino acid support.
Other sellers (1)
95 Value

L-Lysine Powder 960 mg

Carlson
4.8
★★★★★
(2270 ratings)
The pure powder format offers high biological utility and the flexibility to adjust doses as needed. It provides a concentrated building block for tissue repair without the binders or excipients found in tablets.
Other sellers (3)
98 Performance

L-Proline 2000 mg

Nutricost
4.8
★★★★★
(403 ratings)
A high-potency 2,000 mg dose of L-proline provides much stronger support for intensive collagen synthesis and connective tissue repair. This concentration is ideal for individuals with higher therapeutic requirements for structural maintenance.
Other sellers (0)
95 Performance

L-Lysine 1000 mg

Solgar
4.7
★★★★★
(9896 ratings)
This high-dose lysine supplement offers double the amount of essential amino acid per tablet to support keratin structure. It is excellent for individuals addressing significant nutritional gaps in protein intake.
Other sellers (3)
96 Performance

Double Strength Hyaluronic Acid 100 mg

NOW
4.7
★★★★★
(26893 ratings)
Combining L-proline with hyaluronic acid and alpha lipoic acid provides comprehensive support for tissue hydration and resilience. It addresses both the building blocks and the protective antioxidants needed for structural health.
Other sellers (5)
94 Budget

L-Lysine 500 mg

NOW
4.8
★★★★★
(4489 ratings)
This clean, single-ingredient formula provides 500 mg of L-lysine hydrochloride for structural integrity at a very low cost. It is an efficient way to support collagen production without unnecessary additives.
Other sellers (5)
93 Budget

L-Lysine 600 mg

21st Century
4.7
★★★★★
(1177 ratings)
With 600 mg of lysine and added calcium, this tablet offers more active protein building blocks for a lower price per serving. It serves as a practical maintenance dose for hair and tissue health.
Other sellers (0)
92 Budget

Free-Form L-Lysine 500 mg

Swanson Premium Brand
4.8
★★★★★
(1724 ratings)
The free-form hydrochloride delivery ensures rapid uptake for follicle and scalp support. This pure capsule format is highly accessible and focused on efficient amino acid delivery.
Other sellers (1)
92 Value

Pro-Rite

Carlson
4.9
★★★★★
(904 ratings)
This bulk packaging of the same formulation provides the foundational proline and lysine blend at a more sustainable price for long-term use. It ensures a consistent supply of collagen precursors for bone and skin tissues.
Other sellers (1)
94 Value

L-Lysine 1000 mg

AN Amazing Nutrition Amazing Formulas
4.8
★★★★★
(328 ratings)
Providing a robust 1,000 mg dose in a high-volume format ensures a very long-term supply of structural nutrients. It represents excellent value for individuals who require high-strength amino acid support.
Other sellers (1)
95 Value

L-Lysine Powder 960 mg

Carlson
4.8
★★★★★
(2270 ratings)
The pure powder format offers high biological utility and the flexibility to adjust doses as needed. It provides a concentrated building block for tissue repair without the binders or excipients found in tablets.
Other sellers (3)
98 Performance

L-Proline 2000 mg

Nutricost
4.8
★★★★★
(403 ratings)
A high-potency 2,000 mg dose of L-proline provides much stronger support for intensive collagen synthesis and connective tissue repair. This concentration is ideal for individuals with higher therapeutic requirements for structural maintenance.
Other sellers (0)
95 Performance

L-Lysine 1000 mg

Solgar
4.7
★★★★★
(9896 ratings)
This high-dose lysine supplement offers double the amount of essential amino acid per tablet to support keratin structure. It is excellent for individuals addressing significant nutritional gaps in protein intake.
Other sellers (3)
96 Performance

Double Strength Hyaluronic Acid 100 mg

NOW
4.7
★★★★★
(26893 ratings)
Combining L-proline with hyaluronic acid and alpha lipoic acid provides comprehensive support for tissue hydration and resilience. It addresses both the building blocks and the protective antioxidants needed for structural health.
Other sellers (5)
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