Medik8 Liquid Peptides Dupes & Cheaper Alternatives
From 37 Reddit threads · Updated October 16, 2026
Multi-peptide serum plumps skin and softens smile lines; pricey, benefits fade quickly. The catch: Expensive, with benefits fading when skipped. Here's what Redditors reach for instead.
The short answer
Best Overall AlternativeCopper-peptide anti-aging cocktail
Best Cheaper AlternativeVisible texture and pore improvements · $9.30 · 29.6 ml vs $68.00 for the original
Same Active: PeptidesMulti-peptide blend with humectant-heavy hydration · $15.89 · 29.6 ml
#1
Best Overall Alternative
- Key actives: Copper Peptides 1%
The why
One minus
Sticky texture that can pill
Both recommended for Anti-Aging; discussed alongside Medik8 Liquid Peptides in 5 threads.
“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
The original, at a glance
- Why people love it
- Broad multi-peptide lineup
- Price
- $68.00 · 29.6 ml · $2.30/ml
#2
Best Cheaper Alternative
- Key actives: Retinol 0.5%
- Size: 29.6 ml
- Price per ml: $0.31/ml (original $2.30/ml)
The why
This oil-based 0.5% retinol targets texture, pores, and early lines; Redditors often introduce it two or three nights weekly. Research found retinol helped inflammatory acne, but sensitive users report burning and the squalane finish can feel heavy.
One minus
Retinol burn hits sensitive skin
Good forDry Skin
Both recommended for Anti-Aging.
“i started with the ordinary retinol 0.5% and worked up from there”
— Reddit, r/SkincareAddiction
#3
Same Active: Peptides
- Size: 29.6 ml
- Price per ml: $0.54/ml (original $2.30/ml)
The why
A water-based peptide and hyaluronic-acid serum that layers easily into routines and adds immediate hydration without demanding a complicated schedule. It suits dehydrated skin and retinoid users wanting extra cushioning, though peptide results are subtle and some users report breakouts.
One minus
Results can stay imperceptible for months
Both recommended for Anti-Aging.
“This has been my go to for 5 years now and I have almost no eye lines.”
— Reddit, r/30PlusSkinCare
#4
Best for Dehydration
- Key actives: Hyaluronic Acid 2%
- Size: 30 ml
- Price per ml: $0.62/ml (original $2.30/ml)
The why
A hyaluronic acid serum with panthenol and glycerin that people mainly use for dehydration and post-retinoid tightness. Best on damp skin under moisturizer, especially if your barrier is cranky. Dry climates and heavy layering can make it feel sticky or useless.
One minus
Sticky, tacky, and prone to pilling
Good forDry Skin, Sensitive Skin
Both recommended for Dehydration.
“some extra hydration ingredients like hyaluronic acid from the ordinary”
— Reddit, r/SkincareAddiction
Other alternatives worth a look
High-strength 1% retinol for experienced users · 84 mentions
Oily SkinGentle
Starter retinoid with low-irritation rep · 72 mentions
Dry SkinSensitive Skin
Low-strength retinol starter at 0.2% · 52 mentions
Combination SkinAcne
Watery, fast-absorbing centella · 533 mentions
Combination SkinOily Skin
15% pure L-ascorbic acid — the strongest vitamin C form · 80 mentions
Vitamin C
2% alpha arbutin — the whole point here · 76 mentions
Hyperpigmentation
Ceramides plus cholesterol for barrier support · 74 mentions
Dry SkinSensitive Skin
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