It's a skincare bundle featuring two key products centered around two hero ingredients:

1. Watermelon Extract (from the Citrullus Lanatus fruit)
2. Niacinamide (also known as Vitamin B3 or Nicotinamide)

The set is designed to provide hydration, soothing, pore refinement, and brightening in a simple, often lightweight routine.

Typical Products in the Set

A standard set includes two products, often in a coordinated package:

1. Watermelon-based Hydrating Product
2. Common Form: A sleeping mask, moisturizing gel, or soothing cream.
3. Key Ingredient: Watermelon Extract.
4. Purpose & Benefits:
5. Intense Hydration: Watermelon is rich in water (obviously), amino acids, and electrolytes like magnesium and potassium, which help attract and bind water to the skin.
6. Soothing & Calming: Contains antioxidants like lycopene and vitamin C, which can help calm minor redness and irritation.
7. Lightweight Feel: Typically provides a non-greasy, fresh, gel-like texture that is suitable for oily and combination skin.
8. Niacinamide-based Treatment Product
9. Common Form: A serum, essence, or toner.
10. Key Ingredient: Niacinamide (often at concentrations between 2% and 10%).
11. Purpose & Benefits:
12. Pore Refining & Sebum Control: Helps minimize the appearance of enlarged pores and regulate oil production.
13. Brightening & Evening Skin Tone: Inhibits the transfer of melanin to skin cells, helping to fade dark spots and post-acne marks.
14. Strengthening the Skin Barrier: Boosts ceramide production, improving skin's resilience and hydration retention.
15. Anti-inflammatory: Helps reduce redness and calm acne.

Target Skin Types & Concerns

1. Oily, Combination, and Acne-Prone Skin (due to the lightweight hydration and niacinamide's sebum-regulating properties).
2. Dull, Uneven Skin Tone (brightening from niacinamide).
3. Dehydrated Skin that needs moisture without heavy oils.
4. Sensitive or Reactive Skin (benefiting from the soothing properties of both ingredients).
5. Those seeking a simple, effective routine with minimal steps.

How to Use the Set (Sample Routine)

The philosophy is simplicity:

1. Cleanse your face as usual.
2. Apply the Niacinamide Serum/Toner to the entire face. Let it absorb.
3. Follow with the Watermelon Gel/Mask as a final hydrating layer.
4. If it's a sleeping mask, apply a thin layer as the last step of your PM routine and leave it on overnight.
5. If it's a moisturizing gel, use it as your daytime or nighttime moisturizer.