Medik8 Liquid Peptides Advanced MP Dupes & Cheaper Alternatives
From 24 Reddit threads · Updated October 30, 2026
Peptide-rich serum visibly plumps and smooths fine lines; expensive cherry-on-top step. Here's what Redditors reach for instead.
The short answer
Best Overall AlternativeAcetyl Hexapeptide-8 targets dynamic forehead lines · $9.70 · 30 ml
Best Cheaper Alternative10% peptide serum focused on fine lines · $10.90 · 30 ml vs $95.00 for the original
Same Active: PeptidesBroad peptide blend for long-game anti-aging
#1
Best Overall Alternative
- Key actives: Argireline Solution 10%
- Size: 30 ml
- Price per ml: $0.32/ml (original $3.21/ml)
The why
A watery peptide serum centered on Acetyl Hexapeptide-8 for forehead lines, crow’s feet, and other expression creases. It suits people wanting a low-cost, Botox-adjacent experiment, but results are temporary, inconsistent, and sometimes nonexistent.
One minus
Temporary cosmetic effect, not a permanent wrinkle fix
Both recommended for Anti-Aging.
“after a year of use my 11 lines like yours were lessened a bunch.”
— Reddit, r/30PlusSkinCare
The original, at a glance
- Why people love it
- 13-peptide blend with copper peptides
- Price
- $95.00 · 29.6 ml · $3.21/ml
#2
Best Cheaper Alternative
- Key actives: Matrixyl 10%
- Size: 30 ml
- Price per ml: $0.36/ml (original $3.21/ml)
The why
A lightweight peptide-and-hyaluronic-acid serum for gradual fine-line smoothing, dewy hydration, and easy layering around tretinoin routines. The community splits sharply: some see texture and line improvements after weeks, while others see nothing or develop clogged pores.
One minus
Breakouts and clogged pores hit some users
Good forDry Skin
Both recommended for Anti-Aging.
“Ive been using TO Matrixyl for near 5 months now and the fine lines under my eyes have faded considerably”
— Reddit, r/scacjdiscussion
#3
Same Active: Peptides
Multi-Peptide + Copper Peptides 1% Serum
The Ordinary·Serum
See alternativesBroad peptide blend for long-game anti-aging
- Key actives: Copper Peptides 1%
The why
A multi-peptide serum with copper tripeptide-1 and humectants for gradual plumping and fine-line softening. It fits long-game anti-aging routines and can sit in morning rotation, though reactive skin may burn or break out, and retinoid users should separate applications.
One minus
Sticky texture pills under layered routines
Both recommended for Anti-Aging.
“The peptides might just help a lot with hydration, but I noticed more "bounce" to my skin after using that for several months, even when compared to retinoids.”
— Reddit, r/40plusskincare
#4
Best for Anti-Aging
- Size: 50 ml
- Price per ml: $0.69/ml (original $3.21/ml)
The why
This is a niacinamide serum, used as step zero before your routine. Redditors reach for it for glow and texture, while studies find niacinamide’s acne results uncertain; sensitive skin may face stinging, redness, or breakouts.
One minus
Breakouts and closed comedones are recurring complaints
Both recommended for Anti-Aging.
“Basically you want to think of it as your “step zero” — it kind of acts as a mini micro-needling treatment so it’s going to help with the absorption of whatever you put on top.”
— Reddit, r/koreanskincare
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