GC Green Cross L-Cystine 500mg (180 Tablets) جي سي جرين كروس إل-سيستين ٥٠٠ مجم
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Free delivery upon reaching the required minimum order per location. Refer in our FAQ page.
EXP. 07/2026
Key Benefits:
- Boosts glutathione production to reduce oxidative stress
- Strengthens hair & nails & skin barrier
- Enhances keratin production, which is essential for strong hair and nails
- Helps improve skin condition, especially in cases of hyperpigmentation or melasma (often used with Vitamin C)
- Inhibits melanin formation for clearer, more even skin
- Supports detox, UV protection, and skin regeneration
- L-Cysteine helps detox, brighten, and protect your skin from within.
- May support liver detoxification indirectly through sulfur amino acid metabolism
Who It’s For:
- People experiencing hair loss or thinning hair
- Those with brittle nails
- Individuals dealing with skin pigmentation concerns
- Often used in skin whitening or brightening regimens (especially in Asia)
Notes:
It’s commonly combined with Vitamin C or Glutathione for skin-brightening effects.
Safe for long-term use, but consult your healthcare provider if pregnant, nursing, or on medication.
Recommended Dosage:
- Take 2 tablets in the morning and 2 tablets in the evening after meals, with water.
- Take it for 15 days, then stop for 15 days.
- Repeat this cycle: 15 days on, 15 days off.
Dosage may be adjusted depending on age, condition, or doctor’s recommendation.
Main Ingredient (Per Tablet):
L-Cystine 500 mg
Note Please Read: Ingredients may change at manufacturer's discretion. Some additional ingredients may not be listed online as they are undisclosed. For the latest and most comprehensive list, check product packaging. We will not accept returns if all ingredients are not listed online as we rely on the brand's provided information. Review the product ingredients list upon receiving the product.
These products are not meant to diagnose, treat, cure, or prevent any diseases. Our products cater to your skincare and beauty needs. Princess Cosmetics holds no responsibility for any skin reactions. It is advisable to consult with your dermatologist if you are unfamiliar with the product.


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Princess Cosmetics commenced its skincare odyssey in 2017 as Dobee's Collection, transitioning to Princess Cosmetics in 2020. Our commitment to 100% authenticity is upheld through direct collaborations with the brand and authorized distributors.