SP-IV Complex™

Advanced Defense Serum

  • SP-IV Complex™
  • Peptides
  • Ceramides
  • Paraben free
$175.001.0 fl oz / 30 mL

Advanced Defense Serum is the most complete expression of MEG 21, built on SP-IV Complex™: Supplamine® anti-glycation technology, peptides, ceramides, and deep hydration in one daily formula.

Physician-dispensed
Supplamine® anti-glycation technology

Morning and evening, after cleansing and toning.

1. Apply 2 to 3 drops to clean skin.
2. Gently press into face and neck.
3. Follow with eye treatment, then moisturizer.
4. Finish with SPF in the morning.

All skin types, including sensitive and post-procedure skin. Fragrance-free.

Built for the person who already uses a vitamin C and a retinoid and wants the third pillar their routine is missing. Also the med spa client looking for a take-home product that works alongside in-practice treatments.

Water (Aqua), Glycerin, Butylene Glycol, Propanediol, Acetyl Glutamine, Bacillus/Folic Acid Ferment Filtrate Extract, Caprylyl Glycol, Lecithin, Phenoxyethanol, Polysorbate 20, Sodium Hyaluronate, Sodium Lauroyl Lactylate, Carbomer, Ethylhexylglycerin, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, sh-Polypeptide-11, sh-Polypeptide-9, sh-Oligopeptide-2, sh-Oligopeptide-1, sh-Polypeptide-1, Ceramide NP, Methylglucamine HCl, Arginine HCl, Phytosphingosine, Ceramide AP, Xanthan Gum, Cholesterol, Ceramide EOP.

How it works in the skin

Supplamine® is the heart of MEG 21. In this serum it works alongside peptides, ceramides and hyaluronic acid, each with its own job in the skin.

  • Supplamine® at the coreOur signature anti-glycation complex.
  • SP-IV Complex™Four actions in one daily serum.
  • Gentle every dayFragrance-free, for all skin types.
Explore the science

What's inside

SP-IV Complex™ brings four pillars together: Supplamine®, peptides, ceramides and hyaluronic acid, in one lightweight daily serum.

  • Supplamine® at the coreOur signature complex, in every bottle.
  • Barrier-loving ceramidesHelp skin hold on to moisture.
  • Paraben-freeFragrance-free and easy to layer.
Explore the science

Images are for illustration purposes only.

Loved by MEG 21 customers

Supplamine® is at the heart of every MEG 21 formula. Here is what long-time customers say about theirs.

  • Loyal for yearsMany have used MEG 21 for years.
  • Recommended by professionalsOften first suggested by their esthetician or dermatologist.
Read more stories
My skin care person turned me on to this product. I really think the attack on glycation is a strength of this product. I highly recommend it.
Amy H.On Décolleté Treatment Advanced Formula
I discovered Meg 21 many years ago through my dermatologist. I have tried so many other brands....and there are still others out there that are terrific....but Meg 21 gets the blue ribbon!!! Moisture without the greasiness. Love this product!!
OliviaOn Smooth Radiance Face Treatment
I have been using this for at least 5 years and I absolutely love this product. My face does not dry out and my skin looks fresh at the end of the day.
BrittanyOn Smooth Radiance Face Treatment

Trusted by physicians

Developed by Dr. Annette Tobia, PhD, and dispensed by physicians who trust it with their patients.

  • Physician-dispensedOffered in medical practices.
  • Complements your treatmentsUse between visits, once your provider says your skin is ready.
For professionals
Dr. Betsy A.B. Greenleaf, DO
Dr. Betsy A.B. Greenleaf, DOFACOOG, FACOG, FPMRS, FAAOPM, MBA
I was dazzled by the science but fell in love with how great it works. This has been my go-to product for myself, my family, and my patients.
Dr. Adrian Manjarrez-Cortez, MD
Dr. Adrian Manjarrez-Cortez, MDPlastic Surgery
MEG 21 offers effective moisturization, addresses skin firmness and reduces fine lines and wrinkles…
Dr. Kenneth Redcross, MD
Dr. Kenneth Redcross, MDInternal Medicine
What I love about MEG 21 is that it actually works — thanks to Supplamine®, their powerful, science-backed secret weapon.
Dr. Alice McKee, MD
Dr. Alice McKee, MDFamily Medicine
When I recommend MEG 21, I speak from both science and personal experience. It makes skin supple — less wrinkled, less dry, less 'hard.'

Complete your routine

Serum first, then layer these. The pairings we recommend with it.

  • The Peptide DuoWith Eye Treatment: one peptide family, face and eyes.
  • Morning to nightFace Treatment by day, SPF every morning.
Shop the routine
Smooth Radiance Face TreatmentDaily Defense PairThe lightweight morning cream after your serum.
$130.00
Peptide Bright & Firm Eye TreatmentThe Peptide DuoSame peptide family, made for the eye area.
$85.00
Daily Mineral Shield SPF 30 TintedEvery morningThe last step of your morning routine.
$60.00

Try MEG 21 with the Discovery Kit

Five travel sizes of the MEG 21 anti-glycation range in a custom cosmetic bag: the serum, two treatments, the eye treatment and the mineral SPF. The whole routine, before you commit to full sizes.

Shop the Discovery Kit — $30