INCI: Dipeptide Diaminobutyroyl Benzylamide Diacetate
Anti-wrinkle peptide that relaxes facial muscles
Syn-Ake is a synthetic peptide that mimics the effects of temple viper venom, designed to reduce wrinkles by temporarily relaxing facial muscles. Its official INCI name, Dipeptide Diaminobutyroyl Benzylamide Diacetate, reflects its dipeptide structure, which allows it to work topically without injections. In K-beauty, Syn-Ake has become a cornerstone ingredient in anti-aging formulations, particularly in serums and creams targeting expression lines around the eyes, forehead, and mouth. Unlike retinol or acids that accelerate cell turnover, Syn-Ake works by interfering with muscle contraction signals, offering a non-invasive alternative to procedures like Botox. Korean brands have embraced this peptide for its ability to deliver visible smoothing effects without irritation, making it suitable for sensitive skin that cannot tolerate more aggressive anti-aging actives. With a safety rating of 4/5 and a comedogenic rating of 0/5, Syn-Ake is remarkably well-tolerated across skin types. Seoul Sister data shows it appears in 56 K-beauty products, with top-rated formulations like Bioheal BOH's Probioderm Collagen Remodeling Serum (5.0/5) and Numbuzin's No. 9 NAD Bio Lifting-sil Essence (4.9/5) demonstrating its effectiveness when combined with complementary peptides and hydrators. The ingredient's growing popularity reflects K-beauty's shift toward biomimetic technology that works with skin's natural processes rather than forcing dramatic changes.
Syn-Ake functions by mimicking Waglerin-1, a peptide found in temple viper venom that blocks acetylcholine receptors at the neuromuscular junction. When applied topically, the dipeptide penetrates the skin and binds to nicotinic acetylcholine receptors on muscle cells, preventing the signal transmission that causes muscles to contract. This temporary paralysis is much milder than injectable neurotoxins but follows the same principle: less muscle movement means fewer repetitive creases that deepen into static wrinkles over time. The dipeptide structure is small enough to penetrate the stratum corneum but large enough to remain stable in formulations. Because it works on the surface level of muscle activity rather than restructuring collagen or affecting cell DNA like retinoids do, Syn-Ake produces visible smoothing effects relatively quickly, often within weeks of consistent use. The effect is cumulative and reversible, meaning continued application maintains results while discontinuation allows normal muscle function to resume. This mechanism makes it particularly effective for dynamic wrinkles (those caused by facial expressions) rather than static wrinkles caused by sun damage or collagen loss, though Korean formulations often pair Syn-Ake with collagen-boosting ingredients for comprehensive anti-aging benefits.
Syn-Ake works well for oily skin because it is non-comedogenic and typically formulated in lightweight serums that absorb quickly without adding greasiness. The peptide itself does not affect sebum production, so it can safely address expression lines without triggering breakouts. Look for water-based formulations like Numbuzin's No. 9 NAD Bio Lifting-sil Essence that layer easily under mattifying products.
Dry skin benefits significantly from Syn-Ake formulations because Korean brands typically combine this peptide with intensive hydrators and barrier-repair ingredients. Products like Bioheal BOH's Probioderm 3D Lifting Cream (4.8/5) pair Syn-Ake with nourishing textures that address both wrinkle depth and moisture loss. The peptide's non-irritating nature means it won't compromise an already sensitive moisture barrier while working to smooth fine lines.
Combination skin can use Syn-Ake without worry since the ingredient is non-comedogenic and works independently of oil production. Apply it to areas with expression lines (forehead, around eyes) regardless of whether those zones are oily or dry. The peptide absorbs efficiently and won't migrate or cause congestion in T-zone areas, making it ideal for targeted anti-aging in mixed skin conditions.
Sensitive skin tolerates Syn-Ake exceptionally well because it works through a gentle mechanism that doesn't involve exfoliation, inflammation, or photosensitivity. Unlike retinol or acids that can trigger redness and peeling, this peptide simply modulates muscle signals without disrupting the skin barrier. Its 4/5 safety rating reflects minimal irritation potential, and the high ratings of products like Bioheal BOH's Probioderm line suggest excellent tolerance even in reactive skin types.
Normal skin can incorporate Syn-Ake as a preventative measure against premature aging or to address early expression lines. The peptide maintains skin smoothness without causing imbalance or requiring extensive adjustment periods. Use it in well-formulated serums like Bioheal BOH's Probioderm Collagen Remodeling Serum (5.0/5) that combine Syn-Ake with complementary actives for comprehensive maintenance and protection.
Syn-Ake was developed by Swiss company Pentapharm (now part of DSM) in the early 2000s as a biomimetic alternative to injectable wrinkle treatments. Researchers studied the paralyzing effects of temple viper (Tropidolaemus wagleri) venom and isolated Waglerin-1, a peptide that blocks muscle contraction. By synthesizing a similar dipeptide structure that could work topically, they created an ingredient that mimics snake venom's smoothing effects without the dangers or needles. K-beauty brands quickly adopted Syn-Ake in the mid-2010s as Korean skincare philosophy embraced advanced peptide technology and non-invasive anti-aging solutions. The ingredient fit perfectly into Korea's preventative approach to aging, where consumers start anti-wrinkle treatments in their twenties and thirties rather than waiting for deep lines to form. Brands like Bioheal BOH have made Syn-Ake a signature ingredient in their Probioderm lifting line, combining it with probiotics and other peptides to create comprehensive anti-aging systems that reflect K-beauty's holistic, multi-ingredient approach.

Probioderm Collagen Remodeling Serum
Bioheal BOH

No. 9 NAD Bio Lifting-sil Essence
Numbuzin

Probioderm 3D Lifting Eye & Wrinkle Cream Double Pack
Bioheal BOH

Probioderm 3D Lifting Cream
Bioheal BOH

No. 9 NAD PDRN Glow Treatment Toner
Numbuzin

The Peptide Lifting Glow Set
COSRX

Probioderm Collagen Remodelling Serum Refill Set
Bioheal BOH

Probioderm 3D Lifting Ampoule
Bioheal BOH

Madeca Micro Startoc Serum
Centellian24

Panthecell Repair Cica NON-Touch Bubble Cleanser
Bioheal BOH

Super Melting Sebum Softener Set
Ilso

No. 9 NAD RetinA Volume Shot Eye Cream
Numbuzin
Yuri, our AI beauty advisor, can analyze how Syn-Ake works with your specific skin type, routine, and concerns.
Try Seoul Sister Pro