L-Cysteine 500 mg
Solgar
L-Cysteine 500 mg
4.5
★ ★ ★ ★ ★
(1545 ratings)
Cysteine 500 mg
Score 75.0
A pure, standard dose L-Cysteine supplement from a reputable brand, Solgar's offering supports antioxidant function and structural protein synthesis for hair, skin, and nails. While effective, it's not the most cost-efficient option nor does it include complementary nutrients found in some competitors. This makes it a solid, albeit somewhat premium-priced, choice for those prioritizing brand trust and a singular ingredient.
Quantity: 90 Capsule(s)Servings size: 1 Vegetable Capsule(s) (90 servings)
Selected goals:
Other goals:
Immunity
Detoxification
Skin Health
Hair Health
leaderboard Score 75.0
A pure, standard dose L-Cysteine supplement from a reputable brand, Solgar's offering supports antioxidant function and structural protein synthesis for hair, skin, and nails. While effective, it's not the most cost-efficient option nor does it include complementary nutrients found in some competitors. This makes it a solid, albeit somewhat premium-priced, choice for those prioritizing brand trust and a singular ingredient.
insights Analysis
L-Cysteine 500 mg by Solgar provides a standard and effective dose of L-Cysteine Hydrochloride, known for its role as a precursor to glutathione, a master antioxidant vital for detoxification and immune function. Furthermore, L-Cysteine is a crucial component of keratin, supporting the structural integrity of hair, skin, and nails. While the brand is highly regarded for quality and purity in the supplement market, this particular product is a pure L-Cysteine supplement without additional synergistic nutrients like Vitamin C or B6, which some competitors offer at a more competitive price point. Online reviews generally praise Solgar's quality, though some consumers might seek out more comprehensive formulations or better cost-per-serving options.
- Reputable and trusted brand (Solgar) known for quality and purity.
- Provides a standard, effective dose of 500mg L-Cysteine per serving.
- Convenient capsule form, easy to incorporate into daily routine.
- Generous quantity with 90 servings per bottle.
- Higher price per serving compared to many alternatives, including those offering added synergistic ingredients.
- Does not include complementary nutrients like Vitamin C or B6 that can enhance L-Cysteine's effectiveness for its stated goals.
- Focused solely on L-Cysteine without a broader spectrum of benefits for hair, skin, and nails.
- As with any supplement, consult a healthcare professional before use, especially if pregnant, nursing, taking medications, or having a medical condition.
- May interact with certain medications, particularly those affecting blood clotting or immune function.
$18.89($0.20 per serving)
 Vitacost | $ 18.89 | |
 iHerb | $ 19.69 | |
 Amazon | $ 19.69 | |
 Daily Vita | $ 23.10 |
bolt Effectiveness for goals
Cysteine is a precursor to glutathione, one of the body's most powerful antioxidants. By supporting glutathione levels, it helps protect cells from oxidative damage caused by free radicals. This contributes to overall cellular health and function.
Cysteine's effectiveness in reducing oxidative stress stems from its role as a precursor to glutathione, a major endogenous antioxidant. By boosting glutathione levels, it helps scavenge free radicals and mitigate cellular damage. This process is fundamental to maintaining cellular integrity.
Cysteine is a semi-essential amino acid, meaning the body can produce it from other amino acids like methionine, but it can also be obtained through diet or supplements. It plays a crucial role in protein synthesis and various metabolic functions. Cysteine is a precursor to glutathione, a powerful antioxidant.
As N-acetylcysteine (NAC), a derivative of Cysteine, it is widely recognized for its mucolytic properties. It helps thin mucus in the airways, making it easier to clear. This action can support the health of the respiratory tract.
Cysteine is a key component of glutathione, one of the body's most important antioxidants. By providing the building block for glutathione synthesis, Cysteine helps the body combat oxidative stress. This action supports cellular health and protection against free radicals.
schedule Dosage, timing & forms
L-Cysteine is the naturally occurring amino acid, while NAC is a modified form of Cysteine that has an acetyl group attached. NAC is generally more stable and better absorbed by the body, making it a more popular choice for supplementation. Both forms serve as precursors to glutathione.
L-Cysteine is an amino acid, while N-Acetyl Cysteine (NAC) is a modified form of L-Cysteine with an acetyl group attached. NAC is generally preferred as a supplement because it is more stable and better absorbed by the body. It also serves as an efficient precursor for glutathione synthesis, which is a key antioxidant.
The most common and widely available supplemental form is N-Acetyl Cysteine (NAC), which is a precursor to L-Cysteine and glutathione. L-Cysteine is also available, often found in combination supplements. These forms differ in their chemical structure and how they are utilized by the body.
The most common supplemental form of Cysteine is N-acetyl Cysteine, often abbreviated as NAC. L-Cysteine is another form available in supplements, but NAC is generally preferred due to its higher bioavailability and stability. These forms are typically found in capsules, tablets, or powders.
While specific upper limits can vary by individual and product, daily doses of N-Acetyl Cysteine (NAC) typically do not exceed 1800 mg for general use without medical supervision. Much higher doses have been used in clinical settings, but this is always under the guidance of a healthcare professional. Adhering to label instructions is crucial.
health_and_safety Safety & interactions
Yes, Cysteine, particularly NAC, may interact with certain medications. It could potentially enhance the effects of vasodilators like nitroglycerin, leading to low blood pressure. It may also interact with some immunosuppressants or blood thinners, so consult a doctor if taking such medications.
Cysteine, especially N-acetylcysteine (NAC), is generally well-tolerated. Some individuals may experience mild gastrointestinal upset, such as nausea, vomiting, or diarrhea. Less common side effects can include skin rashes or headache.
There isn't a universally established "safe upper limit" for Cysteine or NAC for the general population. Doses used in clinical studies vary significantly, often ranging from 600 mg to several grams daily for specific conditions. Exceeding product label recommendations without professional guidance is not advised.
While Cysteine is naturally present in the body, supplemental use during pregnancy or breastfeeding requires caution. Limited research exists on high-dose Cysteine supplementation specifically in these populations. Individuals should consult a healthcare provider before use.
Individuals with certain pre-existing conditions, such as asthma (especially sulfite sensitivity), should use Cysteine (NAC) with caution. Those prone to kidney stones, particularly cysteine stones, should consult a doctor before supplementing. High doses may also be a concern for individuals with bleeding disorders.
Ingredients
| Ingredient | Amount per serving |
|---|---|
L-Cysteine Hydrochloride | 500 mg |
Categories
Cysteine 80.0
This product provides a pure, standard dose of L-Cysteine in a bioavailable form, directly fulfilling the core requirements of a Cysteine supplement. It stands as a straightforward and effective option within the Cysteine collection, though not the most cost-effective.
Goals
Detoxification 85.0
By boosting glutathione production, L-Cysteine plays a critical role in the body's natural detoxification processes. Glutathione helps neutralize harmful toxins and free radicals, making L-Cysteine a foundational supplement for liver and cellular detoxification.
Immunity 80.0
L-Cysteine is a direct precursor to glutathione, a powerful antioxidant essential for cellular defense and immune system modulation. Its efficacy in supporting immunity is well-established through this pathway, contributing to overall immune resilience.
Skin Health 75.0
L-Cysteine is a building block of keratin, a protein vital for healthy skin structure, elasticity, and repair. While beneficial, optimal skin health often benefits from a broader spectrum of nutrients beyond just L-Cysteine, which this product does not provide.
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