Medik8 C-Tetra Serum

The Medik8 C-Tetra Serum is a daily, morning antioxidant treatment designed to brighten the complexion and protect the skin from environmental damage. It is an oil-soluble, gentle formulation suitable for all skin types, including sensitive skin.When to UseIntegrate the C-Tetra Serum into your morning skincare routine to provide maximum antioxidant protection throughout the day.

• Frequency: Use once daily, in the morning.
• Step: Apply after cleansing and any water-based serums (like the Hydr8 B5 serum for hydration) but before your moisturizer and sunscreen.
• Medik8 CSA Philosophy: It is a core part of the Medik8 philosophy: C (Vitamin C) + Sunscreen by day, A (Vitamin A/retinol) at night. 

How to Apply

1. Cleanse: Start with a clean, dry face, neck, and décolletage.
2. Dispense: Place 4–6 drops of the serum into your palm or onto your fingertips (check product specific instructions, as different versions may vary slightly).
3. Massage: Gently massage the serum evenly over the desired areas, avoiding the immediate eye area. (For the eye area, a dedicated product like Medik8 C-Tetra Eyeis recommended).
4. Absorb: Allow the serum to absorb fully for a few moments.
5. Follow Up: Apply your usual moisturizer and always finish with a broad-spectrum SPF. Vitamin C enhances the efficacy of sunscreen. 

Layering Tips

• Layering Order: Apply the C-Tetra serum in order of product texture, generally from thinnest to thickest.
• With Peptides: If using a peptide serum (like Liquid Peptides), apply the peptides before the C-Tetra.
• With Retinol: Do not use C-Tetra at the same time as vitamin A (retinol) products. Use C-Tetra in the morning and retinol in the evening as per the Medik8 CSA philosophy.
• With Hydration: The serum pairs well with hydrating products like Hydr8 B5 for an extra moisture boost.