John Jeff Vitamin C Essence VC Face Serum 30ml 10% 15%

John Jeff Vitamin C Essence 10-15% (30ml)

A highly stable, lightweight Vitamin C serum designed to brighten and smooth the skin while fighting free radicals. Ideal for dry, oily, and combination skin types, this serum helps prevent photoaging, enhances radiance, and refines skin texture.

Key Benefits

• Brightens Skin Tone: Reduces dullness and uneven skin tone for a radiant complexion.
• Antioxidant Protection: Neutralizes free radicals, protecting skin from environmental stress.
• Anti-Photoaging: Helps defend against UV damage to prevent signs of premature aging.

Usage Instructions

1. Shake Well: Due to its oil-water separation formula, shake before each use.
2. Application: Apply to dry face and hands after cleansing, morning and evening. Follow with other skincare once absorbed. Sunscreen is essential when used during the day.
3. Frequency: Start with every other day (⅓ dropper), then increase to daily use (½ dropper) after four weeks if tolerated.

Caution

• Initial Tingling: A mild tingling sensation may occur on first use due to its low pH (2.5-3.0). This is normal; continue usage gradually.
• Oxidation Warning: Exposure to heat may turn the serum yellow or brown. If a faint yellow color appears, it’s safe to use; however, if it darkens to brown, discontinue as effectiveness is reduced.

FAQs

1. Can it be used both morning and night?
   Yes, it’s effective both morning and night. During the day, it provides antioxidant protection; at night, it helps brighten and smooth skin.

2. Does it need to be stored in the refrigerator?
   For best results in summer, store in the fridge to slow oxidation. In spring, fall, and winter, it can be stored at room temperature if away from direct sunlight.

3. Can it be used if oxidized?
   A faint yellow hue is safe, but if the serum darkens to brown, it’s no longer effective and should be replaced.

4. Is it suitable for sensitive skin?
   Caution is advised for sensitive or damaged skin barriers. Perform a patch test behind the ear; if irritation occurs within 24 hours, discontinue use.

Key Ingredients

• 15% Pure Vitamin C (L-Ascorbic Acid): A potent antioxidant that brightens and protects against photoaging.
• Troxerutin: Maintains Vitamin C’s activity for long-lasting effects.

Full Ingredients List

Water, Ascorbic Acid (Vitamin C), Ethoxydiglycol, Dicaprylyl Carbonate, Octyldodecanol, Butylene Glycol, Troxerutin, Bisabolol, Citrus Reticulata Extract, Tocopherol (Vitamin E).