Cosmetic Peptides for Advanced Skin Care

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Cosmetic Peptides for Advanced Skin Care

Made in Germany – Synthesized at our Mannheim Facility

Serox GmbH is a specialized manufacturer of custom and catalog cosmetic peptides for skin-care applications.
All peptide synthesis is performed at our facility in Mannheim, Germany, ensuring controlled, reliable and reproducible production with cosmetic-grade purity.

Our portfolio covers key peptide classes:

  • Signal peptides – collagen & elastin boosters

  • Neurotransmitter-modulating peptides – “Botox-like” wrinkle reduction

  • Carrier peptides – regeneration & tissue repair

  • Brightening peptides – melanin and pigmentation control

  • DNA repair & protection peptides

We support cosmetic brands, contract manufacturers and R&D labs with flexible batch sizes, documentation and analytical data.

 

Product Portfolio – Cosmetic Peptides

Below you find our core cosmetic peptide range.
For each peptide, we list the Cosmetic Application directly under the article name.

Palmitoyl Pentapeptide-4 

Cosmetic Application: Collagen booster, wrinkle reduction, firming

  • INCI: Palmitoyl Pentapeptide-4

  • Sequence: Pal-Lys-Thr-Thr-Lys-Ser (Pal-KTTKS)

  • Approx. MW: ~802 Da

  • Modification: N-terminal palmitoylation

  • Recommended purity: ≥ 95%

Palmitoyl Tripeptide-1

Cosmetic Application: Skin repair, ECM rebuilding, anti-aging

  • INCI: Palmitoyl Tripeptide-1

  • Sequence: Pal-Gly-His-Lys (Pal-GHK)

  • Approx. MW: ~578–600 Da

  • Modification: N-terminal palmitoylation

  • Recommended purity: ≥ 95%

Palmitoyl Tetrapeptide-7

Cosmetic Application: Anti-inflammatory, reduces redness, improves firmness

  • INCI: Palmitoyl Tetrapeptide-7

  • Sequence: Pal-Gly-Gln-Pro-Arg (Pal-GQPR)

  • Approx. MW: ~802 Da

  • Modification: N-terminal palmitoylation

  • Recommended purity: ≥ 95%

Palmitoyl Tripeptide-5

Cosmetic Application: TGF-β collagen stimulation, firming, lifting

  • INCI: Palmitoyl Tripeptide-5

  • Sequence: Pal-Lys-Val-Lys (Pal-KVK)

  • Approx. MW: ~578–650 Da

  • Modification: N-terminal palmitoylation

  • Recommended purity: ≥ 95%

Acetyl Hexapeptide-8 

Cosmetic Application: Expression line smoothing (“Botox-like”), forehead & eye wrinkles

  • INCI: Acetyl Hexapeptide-8

  • Sequence: Ac-Glu-Glu-Met-Gln-Arg-Arg-NH₂ (Ac-EEMQRR-NH₂)

  • Approx. MW: ~889 Da

  • Modification: N-terminal acetyl, C-terminal amide

  • Recommended purity: ≥ 95%

Acetyl Octapeptide-3 

Cosmetic Application: Strong anti-wrinkle peptide, mimetic relaxation

  • INCI: Acetyl Octapeptide-3

  • Sequence: Ac-Glu-Glu-Met-Gln-Arg-Arg-Ala-Asp-NH₂ (Ac-EEMQRRAD-NH₂)

  • Approx. MW: ~1075 Da

  • Modification: N-terminal acetyl, C-terminal amide

  • Recommended purity: ≥ 95%

Pentapeptide-18 

Cosmetic Application: Reduces muscle contraction and expression wrinkles

  • INCI: Pentapeptide-18

  • Sequence: Tyr-D-Ala-Gly-Phe-Leu

  • Approx. MW: ~573 Da

  • Modification: —

  • Recommended purity: ≥ 95%

Hexapeptide-10

Cosmetic Application: Improves cell adhesion, firmness and skin structure

  • INCI: Hexapeptide-10

  • Sequence: Ser-Ile-Lys-Val-Ala-Val (SIKVAV)

  • Approx. MW: ~633 Da

  • Modification: —

  • Recommended purity: ≥ 95%

Tetrapeptide-21

Cosmetic Application: Collagen booster, reduces skin roughness

  • INCI: Tetrapeptide-21

  • Sequence: Gly-Gln-Pro-Arg (GQPR)

  • Approx. MW: ~441 Da

  • Modification: —

  • Recommended purity: ≥ 95%

Acetyl Tetrapeptide-11

Cosmetic Application: Reinforces epidermal cohesion, improves skin texture

  • INCI: Acetyl Tetrapeptide-11

  • Sequence: Proprietary

  • Approx. MW: —

  • Modification: N-terminal acetyl

  • Recommended purity: ≥ 95%

Acetyl Tetrapeptide-9

Cosmetic Application: Strengthens ECM, improves collagen fiber organization

  • INCI: Acetyl Tetrapeptide-9

  • Sequence: Ac-Gln-Gly-Pro-Lys-NH₂ (Ac-QGPK-NH₂)

  • Approx. MW: ~485 Da

  • Modification: N-terminal acetyl, C-terminal amide

  • Recommended purity: ≥ 95%

Caprooyl Tetrapeptide-3

Cosmetic Application: Stimulates lumican, reinforces the dermal matrix

  • INCI: Caprooyl Tetrapeptide-3

  • Sequence: Cap-Gln-Gly-Pro-Lys (Cap-QGPK)

  • Approx. MW: ~592–620 Da

  • Modification: N-terminal caprooylation

  • Recommended purity: ≥ 95%

Tripeptide-10 Citrulline

Cosmetic Application: Regulates collagen fibril organization, increases suppleness

  • INCI: Tripeptide-10 Citrulline

  • Sequence: Citrulline-Pro-Lys (Cit-Pro-Lys)

  • Approx. MW: ~343 Da

  • Modification: —

  • Recommended purity: ≥ 95%

Trifluoroacetyl Tripeptide-2

Cosmetic Application: Prevents collagen degradation, improves firmness & facial contour

  • INCI: Trifluoroacetyl Tripeptide-2

  • Sequence: TFA-Val-Tyr-Val

  • Approx. MW: ~427 Da

  • Modification: N-terminal trifluoroacetyl

  • Recommended purity: ≥ 95%

Nonapeptide-1

Cosmetic Application: Skin brightening, melanin inhibition, dark spot reduction

  • INCI: Nonapeptide-1

  • Sequence: Tyr-Arg-Ser-Nle-Gly-Tyr-Ser-Nle-Trp-NH₂

  • Approx. MW: ~1227 Da

  • Modification: C-terminal amide

  • Recommended purity: ≥ 95%

Decapeptide-12

Cosmetic Application: Potent brightening peptide, reduces hyperpigmentation

  • INCI: Decapeptide-12

  • Sequence: Tyr-Arg-Trp-Asp-Trp-His-Arg-Ser-Asn (YRWDWHSRSN)

  • Approx. MW: ~1305 Da

  • Modification: —

  • Recommended purity: ≥ 95%

Oligopeptide-68

Cosmetic Application: Brightening peptide, evens skin tone

  • INCI: Oligopeptide-68

  • Sequence: Proprietary

  • Approx. MW: —

  • Modification: —

  • Recommended purity: ≥ 95%

Hexapeptide-2

Cosmetic Application: Melanin regulator, brightening agent

  • INCI: Hexapeptide-2

  • Sequence: Proprietary

  • Approx. MW: —

  • Modification: —

  • Recommended purity: ≥ 95%

Copper Tripeptide-1 (GHK-Cu)

Cosmetic Application: Regeneration, wound healing, anti-aging, improved firmness

  • INCI: Copper Tripeptide-1

  • Sequence: Gly-His-Lys (GHK) complexed with Cu²⁺

  • Approx. MW: ~340–400 Da (peptide + copper)

  • Modification: Copper chelation

  • Recommended purity: ≥ 98% (peptide before chelation)

Carnosine

Cosmetic Application: Anti-glycation, antioxidant, UV and oxidative protection

  • INCI: Carnosine

  • Sequence: β-Ala-His

  • Approx. MW: 226 Da

  • Modification: —

  • Recommended purity: ≥ 98%

Hexanoyl Dipeptide-3 Norleucine Acetate

Cosmetic Application: Stimulates DNA repair, promotes exfoliation & renewal

  • INCI: Hexanoyl Dipeptide-3 Norleucine Acetate

  • Sequence: Hex-Norleucine-Gly-NHAc

  • Approx. MW: ~345–400 Da

  • Modification: Hexanoyl + acetate

  • Recommended purity: ≥ 95%

Diaminopropionoyl Tripeptide-33

Cosmetic Application: Helps repair UV-induced DNA damage in melanocytes

  • INCI: Diaminopropionoyl Tripeptide-33

  • Sequence: Proprietary

  • Approx. MW: —

  • Modification: Diaminopropionoyl substitution

  • Recommended purity: ≥ 95%

Heptapeptide-7

Cosmetic Application: Regeneration and repair, wound-healing support

  • INCI: Heptapeptide-7

  • Sequence: Proprietary

  • Approx. MW: —

  • Modification: —

  • Recommended purity: ≥ 95%

Heptapeptide-8

Cosmetic Application: Improves dermal–epidermal junction (DEJ), increases firmness

  • INCI: Heptapeptide-8

  • Sequence: Peptide composed of Arg / Ile / Leu / Phe (exact sequence proprietary)

  • Approx. MW: —

  • Modification: —

  • Recommended purity: ≥ 95%

Quality, Documentation & Services

  • Manufacturing: All peptides synthesized at our Mannheim facility

  • Quality control: HPLC, MS and full analytical profile on request

  • Documents: CoA, TDS, technical & regulatory support

  • Batch sizes: From R&D scale to multi-kilogram quantities

  • Custom services:

    • Custom peptide design & synthesis

    • Peptide modifications (palmitoyl, acetyl, amide, conjugates)

    • OEM / private label solutions for cosmetic brands

Contact & Inquiries

For quotations, technical data sheets or custom developments, please contact:

Serox GmbH
Custom Peptide Synthesis – Mannheim, Germany

📧 E-mail: sales@serox.com
📞 Phone: +49 (0)621 789 588 33