• Two Numbuzin No.5 Glutathione Vitamin Concentrated Serums on a white background
  • Numbuzin No.5 Glutathione Vitamin Concentrated Serum close up of Glutathione capsules
  • Numbuzin No.5 Glutathione Vitamin Concentrated Serum Duo Set on a light yellow background
  • Three bottles of Numbuzin No.5 Glutathione Vitamin Concentrated Serum on a mirrored platform with a white background
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NUMBUZIN

Numbuzin No.5 Glutathione Vitamin Concentrated Serum Duo Set

Numbuzin No.5 Glutathione Vitamin Concentrated Serum Duo Set

R 799.00
R 799.00
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This item is available for pre-order. Please note that orders will be shipped from our office in Cape Town on 10 November 2025.

This concentrated brightening serum is designed to target hyperpigmentation, stubborn dark spots, discoloration, post-acne marks, and uneven tone. Powered by a multi-vitamin complex with Glutathione (a powerful antioxidant known for melanin regulation), Niacinamide, Tranexamic Acid, and a stable form of Vitamin C, this serum targets melanin formation at multiple stages of the pigmentation process. helping to visibly fade marks and prevent new discoloration from forming.

Panthenol and Ceramides reinforce the skin barrier, keeping the skin calm and hydrated throughout treatment, making this brightening serum suitable even for sensitive skin.

Key clinical findings:

  • 18.90% improvement in overall skin tone evenness
  • 9.65% reduction in dark spots (hyperpigmented areas) within 4 weeks
  • 0.0 irritation score in dermatological irritation testing

Test completed on human skin with full dermatological evaluation. 

Why we love it:

  • Targets dark spots & discoloration for a clearer, more even tone
  • Visibly fades post-blemish marks & hyperpigmentation
  • Multi-pathway pigment interruption: reduces excess melanin formation & accumulation
  • Lightweight, fast-absorbing serum that layers easily under other skincare
  • Clinically tested and proven to be suitable for sensitive skin

Hero ingredients:

Glutathione:
Powerful antioxidant that inhibits melanin production & reduces pigment accumulation, helping fade dark spots & uneven tone.

Ascorbyl Glucoside:
Stable Vitamin C derivative that helps improve skin brightness & reduces the appearance of discoloration by interrupting early melanin formation.

Niacinamide (Vitamin B3):
Helps regulate uneven pigment distribution & improves the appearance of enlarged pores & dullness.

Tranexamic Acid:
Visibly fades stubborn pigmentation by reducing excess melanin from forming & settling in the skin.

Panthenol + Ceramides:
Strengthens the skin barrier & reduces irritation, keeping the skin hydrated & comfortable.

Suitable for: Oily, combination, dull and dry skin. 
Ideal for dark spots and hyperpigmentation, post-acne marks (PIH), uneven tone, tired or lacklustre complexions.

Country of Origin: South Korea

Directions for Use

  1. Apply after toner and before moisturiser.

  2. Dispense 1–2 pumps and apply to areas of concern or full face.

  3. Pat lightly to promote absorption.

  4. Use sunscreen during the day to maintain brightening results.

Can be used daily, morning and evening.

Full Ingredient List

Water, Butylene Glycol, Niacinamide, Panthenol, Tranexamic Acid, 1,2-Hexanediol, Neopentyl Glycol Dicaprate, Caprylic/Capric Triglyceride, Sorbitol, Vaccinium Vitis-Idaea Fruit Extract, Chondrus Crispus Extract, Butyrospermum Parkii (Shea) Butter, Saccharum Officinarum (Sugarcane) Extract, Alpha-Arbutin, Bifida Ferment Lysate, Sodium Hyaluronate, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Tremella Fuciformis (Mushroom) Extract, Pentylene Glycol, Glycerin, 3-0-Ethyl Ascorbic Acid, Bisabolol, Tromethamine, Ethylhexylglycerin, Adenosine, Hydrogenated Lecithin, Allantoin, Glutathione, Ceramide Np, Beta-Glucan, Dipotassium Glycyrrhizate, Tocopherol, Ascorbic Acid, Ascorbyl Glucoside, Tocopheryl Acetate, Hydroxypropyl Cyclodextrin, Ubiquinone, Thioctic Acid, Potassium Hydroxide, Behenyl Alcohol, Carbomer, Xanthan Gum, Disodium EDTA.

This ingredient list applies to all variants of this product. Actual ingredients of a specific product option might vary from this list as the ingredients are subject to change at the manufacturer's discretion. For the most complete and up-to-date list of ingredients, please refer to product packaging.


Notes:
KEEP OUT OF REACH OF CHILDREN. For external use only. Keep out of eyes. Discontinue use if irritation or rash occurs. For cosmetic use only.

Disclaimer: While we strive to ensure the accuracy of all our product information, please note that sometimes the manufacturer may update the formula or packaging without notice. Always refer to the product packaging for the most up-to-date information.

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