Product Image

N-A-G 500 mg

Source Naturals
4.7
★ ★ ★ ★ ★
(643 ratings)
N-Acetyl Glucosamine 500 mg
Product Image
Score83
A focused 500 mg amount may support a hydration-related skin pathway. Unspecified isomer and source details make it less transparent than stronger NAG options.
How scoring works
Quantity:120 Tablet(s) • (120 servings)
Goals:
Skin Health

Score 83

A focused 500 mg amount may support a hydration-related skin pathway. Unspecified isomer and source details make it less transparent than stronger NAG options.
How scoring works
$22.50($0.18 per serving)
iHerb
$ 25.17
Vitacost
$ 25.69
Amazon
$ 22.50
Report prices

Analysis

The tablet supplies a clearly stated 500 mg amount of N-acetyl glucosamine. Its single-active design makes it easy to add to a broader routine without duplicating several skin ingredients.

N-acetyl glucosamine may contribute to hyaluronic-acid production, but oral evidence for visible skin outcomes remains limited. No collagen, antioxidant, or barrier-lipid ingredient expands the formula beyond that hydration-related pathway.

The label does not identify the active D-isomer or the raw-material source. That makes it less transparent than alternatives that specify both details, especially for people concerned about shellfish-derived glucosamine.

Who is it for
  • People trying a moderate N-acetyl glucosamine serving
  • Users who already get other skin-support nutrients elsewhere
Best for
  • Simple single-active supplementation
  • A clearly stated moderate amount

Pros

  • Provides 500 mg per serving
  • Single-active formula is easy to understand
  • Can fit into a broader skin routine

Cons

  • Does not identify the D-isomer
  • Raw-material source is not disclosed
  • Covers only one narrow skin pathway

Warnings

  • The undisclosed N-acetyl glucosamine source prevents people with shellfish allergy from confirming suitability from the label.

Nutrient quality

88 Highest impact

The acetylated glucosamine form and useful amount support focused use. Missing isomer and source details reduce form confidence despite a simple formula.

.

Ingredient transparency

79 High impact

The active amount is disclosed without a hidden blend. Isomer, source, complete directions, and inactive ingredients are not supplied.

.

Customer satisfaction

70 High impact

The supplied average rating is strong. A substantial rating base makes the average reasonably dependable, but no detailed experience evidence was supplied.

.

Value for money

93 Highest impact

Serving economics are highly favorable. Formula quality supports the asking price well.

.
Report analysis

Goals

Skin Health
Skin Health
Impact
Moderate effect
C- Goal FitC+ Strength of SupportD- CoverageB+ Formula Quality
N-Acetyl Glucosamine · 500 mg

N-acetyl glucosamine may support hyaluronic-acid production and skin hydration, but oral evidence for visible outcomes is limited. The amount is clearly stated and provides a reasonable exploratory dose.

The single ingredient addresses one narrow hydration-related mechanism without collagen or antioxidant support. Its source is not disclosed, so people with shellfish allergy cannot tell whether it is shellfish-derived or fermentation-derived.

Study evidence
N-Acetyl Glucosamine Supportive 7 studies

Ingredients

IngredientAmount per serving
N-Acetyl Glucosamine
500 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free
Report overview
N-Acetyl Glucosamine · 500 mg OverallScore76
D+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value

The clearly stated N-acetyl glucosamine amount provides a solid supportive dose at a low cost. The name confirms the acetylated form but does not identify the active D-isomer, and the tablet format is less streamlined than a simple powder or vegetable capsule. Source disclosure is the main concern because people with shellfish allergies cannot tell whether the ingredient comes from shellfish or fermentation.

View ingredientView products
Loading alternative details
76 Performance

G.I. Integrity

Pure Encapsulations
<p>The formula is a broader alternative when digestive-support ingredients are desired, but it is not an across-the-board upgrade for a focused skin goal. Clearly identified shellfish-derived N-acetyl-D-glucosamine and complementary digestive ingredients create a focused formula.</p>
71 Performance

Glucosamine Chondroitin Formula

Country Life
<p>Glucosamine Chondroitin Formula is a broader alternative when joint-support ingredients are desired, but it is not an across-the-board upgrade for a focused skin goal. N-acetyl-D-glucosamine, chondroitin, and other glucosamine forms provide a substantial but broad joint-support formula.</p>
71 Performance

GI-Revive

Designs for Health
<p>GI-Revive is a broader alternative when digestive-support ingredients are desired, but it is not an across-the-board upgrade for a focused skin goal. The powder combines substantial amounts of several digestive-support ingredients, but many extracts lack source or standardization details.</p>
87 Budget

N-A-G 700 mg

Jarrow Formulas
<p>N-A-G 700 mg lowers the serving cost while retaining N-acetyl glucosamine as a central ingredient. The active D-isomer is clearly identified at a substantial supportive amount in a focused formula.</p>
84 Budget

N-Acetyl Glucosamine

NutriCology
<p>Fewer than three supplied candidates cost less per serving than N-A-G 500 mg, so n-acetyl glucosamine should not be viewed as a true cheaper choice. The active D-isomer is clearly identified at a useful supportive amount in a focused formula.</p>
73 Budget

Healthy Gut Capsules With Vitamin D

Terra Origin
<p>Fewer than three supplied candidates cost less per serving than N-A-G 500 mg, so healthy gut capsules with vitamin d should not be viewed as a true cheaper choice. Zinc carnosine, glutamine peptide, N-acetyl glucosamine, and soothing botanicals create a coherent gut-support formula, but many secondary doses are modest.</p>
71 Value

IntestiNew

Renew Life
<p>IntestiNew may suit someone who values a multi-ingredient digestive formula, but its higher serving cost makes it weaker value than N-A-G 500 mg for N-acetyl glucosamine alone. A substantial L-glutamine serving gives the powder a strong intestinal-support foundation, with N-acetyl glucosamine adding a complementary but modest amount.</p>
75 Value

Healthy Gut Berry

Terra Origin
<p>Healthy Gut Berry may suit someone who values a multi-ingredient digestive formula, but its higher serving cost makes it weaker value than N-A-G 500 mg for N-acetyl glucosamine alone. A substantial glutamine serving and a clearly measured N-acetyl glucosamine dose anchor a coherent gut-support powder.</p>
59 Value

Leaky Gut Formula

Codeage
<p>Leaky Gut Formula may suit someone who values a multi-ingredient digestive formula, but its higher serving cost makes it weaker value than N-A-G 500 mg for N-acetyl glucosamine alone. Zinc L-carnosine, butyrate, probiotics, and soothing botanicals create a coherent digestive theme, but most supporting actives are lightly dosed.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Preparation, characterization, and moisturizing effect of liposomes containing glucosamine and N-acetyl glucosamine.
    Malaekeh-Nikouei B; Golmohammadzadeh S; Salmani-Chamanabad S; Mosallaei N; Jamialahmadi K · Journal of cosmetic dermatology · 2014
    Clinical trialSkin Health forN-Acetyl Glucosamine
  2. The effect of N-acetyl-glucosamine on stratum corneum desquamation and water content in human skin.
    Mammone T; Gan D; Fthenakis C; Marenus K · Journal of cosmetic science · 2009
    Clinical trialSkin Health forN-Acetyl Glucosamine
  3. A randomized, investigator-blinded, controlled pilot study to evaluate the safety and efficacy of a poly-N-acetyl glucosamine-derived membrane material in patients with venous leg ulcers.
    Kelechi TJ; Mueller M; Hankin CS; Bronstone A; Samies J; Bonham PA · Journal of the American Academy of Dermatology · 2012
    Randomized trial82 participantsSkin Health forN-Acetyl Glucosamine
  4. Poly-N-acetyl glucosamine nanofibers for negative-pressure wound therapies.
    Fulco I; Erba P; Valeri RC; Vournakis J; Schaefer DJ · Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2016
    Randomized trial20 participantsSkin Health forN-Acetyl Glucosamine
  5. Reduction in the appearance of facial hyperpigmentation by topical N-acetyl glucosamine.
    Bissett DL; Robinson LR; Raleigh PS; Miyamoto K; Hakozaki T; Li J; Kelm GR · Journal of cosmetic dermatology · 2007
    Randomized trial50 participantsSkin Health forN-Acetyl Glucosamine