When it comes to science-led, results-driven skincare, Medik8 is in a league of its own. Trusted by skin professionals and loved by skincare enthusiasts, Medik8 combines clinical-grade actives with gentle, skin-first formulas — making it one of the most effective anti-aging brands available in Ireland today.


Whether you're building your first advanced routine or upgrading to stronger actives, this is your expert guide to the full Medik8 anti-aging collection — including C-Tetra Advanced, Liquid Peptides MP, the Crystal Retinal range, and more.


Why Choose Medik8?


  • Formulated with purpose: Medik8 focuses on Vitamin C (AM), Sunscreen (AM), and Vitamin A (PM) — known as the CSA philosophy

  • Proven actives, no irritation: High-strength formulas with soothing delivery systems

  • No fluff, no filler: No synthetic fragrance, artificial colours, parabens or phthalates

  • Available in Ireland: Shop online or from approved Medik8 stockists




Medik8 Morning Routine – Brighten, Protect & Prevent


C-Tetra & C-Tetra Advanced (Vitamin C Serum)


Part of the Medik8 Vitamin C range, this antioxidant-rich oil serum helps defend against pollution, UV damage and premature ageing.


  • C-Tetra is ideal for first-time users

  • C-Tetra Advanced is a step up for brighter, firmer skin


Both use tetrahexyldecyl ascorbate — a stabilised, non-irritating form of Vitamin C — to support collagen production and fade pigmentation over time.


Pair with: Medik8 Daily Radiance SPF or Physical Sunscreen SPF 50 for full-spectrum UV protection.


Liquid Peptides Advanced MP


This high-performance peptide serum targets 11 visible signs of ageing using patented drone-targeted delivery.


  • Firms and smooths expression lines

  • Boosts elasticity and hydration

  • Combines Matrixyl® and Argireline® for long-term anti-wrinkle support


Works perfectly under your moisturiser or SPF for a firming, plumping effect.


Brightening Powder Cleanse


Add this 2–3x weekly powder exfoliant to boost brightness and clear dull skin.


  • Features gentle acids + Vitamin C

  • Activates with water to create a foamy polish

  • Ideal pre-serum prep for deeper absorption


Medik8 Evening Routine – Restore, Regenerate & Repair




Crystal Retinal (3, 6, 10, 20)


A game-changing alternative to traditional retinol, Crystal Retinal uses retinaldehyde — clinically proven to work up to 11x faster than retinol.


  • Speeds up cell turnover

  • Reduces fine lines, uneven tone & dullness

  • Encapsulated for slow release and reduced sensitivity


Which strength should I use?


Always follow with moisturiser and wear SPF daily.


Advanced Night Restore


A best-selling Medik8 night moisturiser designed to replenish and repair.


  • Ceramides + peptides to rebuild skin barrier

  • Saskatoon berry and dragon fruit antioxidants

  • Perfect after retinal or exfoliation


R-Retinoate Intense


This luxurious night cream combines retinoic acid esters and retinal for professional-strength anti-ageing.


  • Targets deep wrinkles and loss of firmness

  • Infused with nourishing oils and skin-strengthening peptides

  • Perfect for experienced users or those looking to level up


Glow Oil


A silky, dry-touch facial oil to lock in hydration and add radiance.


  • Great over moisturiser at night

  • Supports skin barrier and soothes irritation

  • Beautifully complements Crystal Retinal or R-Retinoate Intense


Supporting Products & Targeted Care


Eyelift Peptides


A targeted peptide eye serum that firms, depuffs and smooths the delicate under-eye area.


  • Supports collagen around the eye socket

  • Works well under makeup

  • Best paired with Medik8 Advanced Night Eye


Cleansing Gel


A refreshing daily cleanser to remove impurities and prep skin for actives.


  • Ideal for all skin types

  • Sulphate-free and non-drying

  • Balances oil without stripping



For Men


Medik8 isn’t just for women — the clean, minimalist textures and high-performance formulas make it ideal for male skin too.


Top picks for men include:


  • Medik8 Retinol TR or Crystal Retinal 6

  • Medik8 Glow Oil

  • Medik8 Cleansing Gel


Sample Medik8 Routine


Morning


  1. Cleanse – Medik8 Cleansing Gel

  2. Exfoliate – Medik8 Brightening Powder Cleanse (2–3x/week)

  3. Vitamin C – Medik8 C-Tetra Advanced

  4. Peptides – Medik8 Liquid Peptides Advanced MP

  5. SPF – Medik8 Daily Radiance or Physical Sunscreen


Evening


  1. Cleanse – Medik8 Gentle Cleanse

  2. Vitamin A – Medik8 Crystal Retinal or R-Retinoate Intense

  3. Eye Cream – Medik8 Eyelift

  4. Night Cream – Medik8 Advanced Night Restore

  5. Optional – Meidk8 Glow Oil (over moisturiser)


FAQ – Medik8 Skincare Ireland


What strength of Crystal Retinal should I start with?


If you’re new to retinoids, start with Crystal Retinal 3 or 6. You can move up as your skin adjusts.


Can I use Liquid Peptides and Crystal Retinal together?


Yes. Use Liquid Peptides before Crystal Retinal for firming and hydration benefits.


Is C-Tetra Advanced better than regular C-Tetra?


Yes—C-Tetra Advanced offers higher potency and deeper penetration for more visible results.


Where can I buy Medik8 in Ireland?


From trusted Medik8 stockists in Dublin and online at dpharmacy.ie with fast nationwide shipping.


Is Medik8 suitable for sensitive skin?


Absolutely. Medik8 products are pH-balanced, fragrance-free, and formulated with sensitive skin in mind.


Can men use Medik8 products?


Yes — the entire Medik8 range is gender-neutral and highly effective for male skin.