PCA Skin

PCA Skin ExLinea Pro Peptide Serum.

Serums

About this product

A lightweight peptide serum designed to address expression lines by targeting facial muscle contractions and preventing deepening lines.

Full ingredients

Water, Glycerin, Pentylene Glycol, Glyceryl Isostearate, Isostearyl Isostearate, C13-15 Alkane, Betaine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Methyl Gluceth-20, Oryza Sativa (Rice) Starch, Polyglyceryl-3 Laurate, Sodium Levulinate, Caprylyl Glycol, Levulinic Acid, Polyglyceryl-6 Oleate, Hydrolyzed Wheat Protein, Ethylhexylglycerin, Hydrolyzed Soy Protein, Sodium Hydroxide, Tetrasodium Glutamate Diacetate, Butylene Glycol, Pectin, Hydroxyethylcellulose, Arginine, Proline, Serine, Glucose, Acetyl Octapeptide-3, Bacillus/Soybean Ferment Extract, Sodium Hyaluronate, Chondrus Crispus (Carrageenan) Extract, Acetyl Hexapeptide-8, Disodium Phosphate, Polysorbate 60, Sodium Phosphate

Guru Score

78%

Yay

Early verdict · Few reviews so far

What they liked

Fast-absorbing, weightless texture
Intensely hydrates without heaviness
Plays well with other peptides and actives

What they flagged

Nothing. None of the experts who reviewed it raised a problem.

What the gurus are saying

Expression lines are this serum's focus, with peptides that reduce facial muscle contractions and work to prevent existing lines from deepening. It genuinely works, though results take time rather than arriving overnight. The weightless formula absorbs quickly and allows spot treatment on trouble areas like the forehead and eyes; it also intensely hydrates while layering smoothly beneath retinoids without clashing.

Synthesized from 3 expert reviews · most recent take August 2026

Best for

Mature skin

Type

SerumsDrops & dropper

Key actives

Hyaluronic acid Peptides

Formula notes

Fragrance-freeNo drying alcohol

Where to buy

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What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

Gothamista

683k subs

✓Yay

"It really does work. I mean it's not immediately effective but nothing that I do for anti-aging really is. It's a marathon. It is the fastest absorbing weightless formula. It leaves nothing on the skin. I love that the texture really allows you to effectively spot treat, so I do it on my forehead for forehead lines, the 11s around the sides of my eyes, just anywhere I feel my expression lines are. I also love that peptide formulas don't really clash. In fact they complement one another so well."

The Budget Dermatologist

724k subs

✓Mixed

"This is by PCA Skin, it's the ExLinea Pro Peptide Serum. It's a peptide that is supposed to target the muscle that causes these dynamic wrinkles. [...] They call this Botox in a bottle in the skincare world. I got this on Amazon Prime Day so I got it on a big discount because it's actually really expensive, but not expensive compared to Botox."

Dr. Daniel Sugai

722k subs

✓Yay

"This is another PCA Skin product that I have definitely loved. [...] I applied this after a chemical peel and wow, my skin was glowing afterwards, so I am definitely impressed by this. [...] This is an excellent peptide serum by PCA Skin, and I tend to use this at bedtime before I apply my retinoid. [...] It has Argireline, which helps reduce muscle contractions to some degree and thus minimize fine lines and wrinkles from dynamic movement, and it does not replace neuromodulating injections."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Peptides

Peptides are short protein fragments meant to signal repair. The evidence for them is thinner than for retinoids or vitamin C, and it varies a lot by the specific peptide, so the category is more promising than proven.

Source: NIH, National Library of Medicine

Frequently asked.

What is PCA Skin ExLinea Pro Peptide Serum?

A lightweight peptide serum designed to address expression lines by targeting facial muscle contractions and preventing deepening lines.

Is PCA Skin ExLinea Pro Peptide Serum worth it?

Mostly yes. 2 of the 3 gurus who reviewed it give it their stamp of approval, for a Guru Score of 78%.

What is PCA Skin ExLinea Pro Peptide Serum's Guru Score?

PCA Skin ExLinea Pro Peptide Serum holds a Guru Score of 78%. That is our read on how warmly the experts talk about it, based on the verdicts of 3 expert reviewers we have collected.