Description

Maintaining consistent growth and morphology of primary human keratinocytes can be challenging during routine cell culture workflows. Variations in cell condition, limited expansion capability, and unstable culture environments may affect downstream applications including epidermal research, skin tissue engineering, and dermatology studies.

XR Kerati. Basal Media & KGS is a serum-free human keratinocyte growth medium specifically developed for the expansion and maintenance of human epidermal keratinocytes. The complete culture system combines optimized basal nutrients with KGS growth supplement to provide a supportive environment for primary keratinocyte proliferation and epithelial morphology maintenance.

This human keratinocyte culture medium is designed for researchers requiring reliable primary keratinocyte expansion without serum supplementation or feeder layer support. XR Kerati. Basal Media & KGS supports NHEK culture workflows, continuous passage expansion, and skin-related research applications requiring consistent cell growth conditions.

Specifications

Product Name	XR Kerati. Basal Media & KGS Human Keratinocyte Culture Medium
SKU	XRKERATI-A1-500 / XRKGS-B-5
Product Type	Serum-Free Human Keratinocyte Growth Medium
Basal Medium	495 mL
KGS Growth Supplement	5 mL (100×)
Recommended Supplement Ratio	1% KGS supplement (1 mL supplement + 99 mL basal medium)
pH	Basal Medium: 7.6–7.8 KGS Supplement: 7.2–7.5
Calcium Concentration	60 μM CaCl₂
Filtration	<0.2 μm filtration
Endotoxin	≤0.125 EU/mL
Bacteria Detection	Not detected
Fungi Detection	Not detected
Storage	Basal Medium: 4°C KGS Supplement: -20°C
Shelf Life	12 months
Research Grade	Research Use Only

Features

Serum-Free Human Keratinocyte Culture System — XR Kerati. Basal Media & KGS provides a serum-free culture environment optimized for human epidermal keratinocyte maintenance and expansion, reducing dependence on undefined serum components.
Optimized for Primary Human Keratinocyte Expansion — The formulation is designed for primary keratinocyte culture workflows, supporting continuous passage expansion from early passages while maintaining epithelial cell characteristics.
Supports Normal Epithelial Morphology Maintenance — Cultured keratinocytes maintain typical cobblestone-like epithelial morphology with compact cell arrangement, supporting downstream skin biology and epidermal research applications.
Feeder-Free Keratinocyte Culture Workflow — XR Kerati medium eliminates the requirement for feeder layer support, providing a simplified workflow for routine human keratinocyte cell culture.
Balanced Nutrient Formulation for Keratinocyte Growth — The basal medium contains optimized amino acids, vitamins, trace elements, and antioxidant factors to support cell survival and long-term culture performance.
KGS Growth Supplement for Enhanced Proliferation — The KGS supplement contains bovine pituitary extract (BPE) and recombinant protein components designed to promote keratinocyte proliferation.
Low Calcium Culture Environment — The formulation contains 60 μM CaCl₂ to support keratinocyte expansion conditions and maintenance of epithelial characteristics.
Quality-Controlled Cell Culture Medium — Each component is filtered through a <0.2 μm filtration process and tested for endotoxin, bacteria, and fungi contamination.

Performance Data

Primary Human Keratinocyte Expansion Performance

XR Kerati. Basal Media & KGS was evaluated for human keratinocyte expansion performance using continuous passage culture. The evaluation was performed using T25 cell culture flasks with a seeding density of 20,000 cells/cm².

The culture results demonstrated that XR Kerati medium supported consistent keratinocyte expansion from P2 recovery through later passages. Cells maintained proliferative ability during early and intermediate passages, with gradual reduction of expansion capacity observed after extended culture.

Passage	Culture Time	Harvested Cells (×10⁶)	Total Expansion Fold
P2 Recovery	48 h	2.14	4.28
P3	48 h	2.47	4.94
P4	48 h	2.01	4.01
P5	48 h	1.97	3.93
P6	48 h	1.82	3.65
P7	48 h	1.58	3.16
P8	48 h	1.22	2.44
P9	72 h	1.16	2.32
P10	72 h	0.93	1.86

Maintenance of Keratinocyte Morphology

Maintaining normal epithelial morphology is an important indicator during human keratinocyte culture. XR Kerati. Basal Media & KGS supports the formation of tightly connected epithelial colonies with typical cobblestone-like morphology.

Cobblestone-like epithelial morphology of human keratinocytes cultured in XR Kerati medium

Recommended image: Human keratinocyte morphology images showing P3, P7 and P10 culture stages

After extended culture, cells cultured in XR Kerati medium maintained epithelial characteristics. At P10, some enlarged cells with senescence-associated morphology may appear as part of long-term culture progression.

Keratin 14 Expression Analysis

Keratin 14 is commonly used as a marker associated with basal keratinocyte identity. XR Kerati cultured cells were evaluated by immunofluorescence staining, showing positive Keratin 14 expression at P10.

Keratin 14 immunofluorescence staining of human keratinocytes cultured with XR Kerati medium

Recommended image: Keratin 14 immunofluorescence staining result of P10 human keratinocytes

Applications

XR Kerati. Basal Media & KGS is designed for researchers performing human keratinocyte culture workflows requiring reliable expansion, epithelial morphology maintenance, and reproducible culture conditions. The serum-free keratinocyte medium supports a broad range of epidermal and skin-related research applications.

Primary Human Keratinocyte Culture — Expansion and maintenance of human primary keratinocytes for cell biology research.
NHEK Culture and Expansion — Suitable for normal human epidermal keratinocyte (NHEK) culture workflows.
Skin Tissue Engineering Research — Supports keratinocyte expansion required for epidermal reconstruction and engineered skin models.
Epidermal Cell Culture Studies — Used for investigating epithelial growth, differentiation, and barrier-related mechanisms.
Dermatology Research — Applicable to studies involving skin biology, epidermal function, and keratinocyte responses.
Wound Healing Research — Supports in vitro keratinocyte culture models for wound repair and regeneration studies.
Cosmetic Ingredient Evaluation — Suitable for laboratory models involving skin-related compound testing and evaluation.
Keratinocyte Proliferation Studies — Supports research requiring analysis of keratinocyte growth and expansion characteristics.
Feeder-Free Human Keratinocyte Culture — Provides a simplified culture solution without feeder layer requirements.
Epidermal Reconstruction and Regenerative Medicine Research — Supports research workflows involving human epithelial cell expansion.

Why Choose XR Kerati. Basal Media & KGS?

Human keratinocyte culture requires carefully controlled environmental conditions to maintain cell proliferation, epithelial morphology, and experimental consistency. Traditional culture workflows may experience challenges including variable cell growth, reduced expansion capacity during extended passages, and dependence on complex culture supplements.

XR Kerati. Basal Media & KGS provides a specialized serum-free human keratinocyte growth medium designed for primary epidermal keratinocyte expansion. The optimized formulation combines nutrient-balanced basal medium with KGS growth supplement to support reliable keratinocyte proliferation and epithelial phenotype maintenance.

Compared with general cell culture media, XR Kerati medium is specifically developed for human keratinocyte applications, including NHEK culture, epidermal cell research, and skin tissue engineering workflows. The feeder-free culture system helps simplify routine laboratory operations while maintaining consistent culture conditions.

Designed specifically for human keratinocyte culture rather than general-purpose cell expansion.
Supports primary human keratinocyte expansion from early passages with stable growth performance.
Provides a serum-free keratinocyte culture solution suitable for reproducible research workflows.
Maintains epithelial morphology and supports Keratin 14-positive keratinocyte characteristics.
Compatible with feeder-free keratinocyte culture workflows for simplified cell maintenance.

FAQ

What is XR Kerati. Basal Media & KGS used for?

XR Kerati. Basal Media & KGS is a serum-free human keratinocyte growth medium designed for the culture, maintenance, and expansion of human epidermal keratinocytes. It is suitable for primary keratinocyte culture, NHEK expansion, skin biology research, and epidermal model development.

Is XR Kerati medium suitable for primary human keratinocyte culture?

Yes. XR Kerati. Basal Media & KGS is specifically designed as a primary human keratinocyte expansion medium to support the growth and maintenance of human epidermal keratinocytes during continuous culture.

Does XR Kerati. Basal Media & KGS contain serum?

No. XR Kerati. Basal Media & KGS is a serum-free keratinocyte culture medium designed to reduce dependence on serum supplementation and provide a more defined culture environment.

Can XR Kerati medium be used for feeder-free keratinocyte culture?

Yes. The XR Kerati culture system is designed for feeder-free human keratinocyte culture workflows and does not require additional feeder layer support.

What cells can be cultured using XR Kerati. Basal Media & KGS?

This medium is intended for human epidermal keratinocyte culture, including primary human keratinocytes and normal human epidermal keratinocyte (NHEK) research applications.

What is the role of KGS Growth Supplement in XR Kerati medium?

KGS Growth Supplement contains bovine pituitary extract (BPE) and recombinant protein components designed to promote keratinocyte proliferation and support primary keratinocyte expansion.

What morphology can be expected when culturing keratinocytes with XR Kerati medium?

Human keratinocytes cultured with XR Kerati. Basal Media & KGS maintain typical epithelial morphology, including tightly connected cobblestone-like cell arrangements commonly observed in keratinocyte cultures.

Does XR Kerati medium support Keratin 14 expression analysis?

Yes. XR Kerati cultured human keratinocytes were evaluated using Keratin 14 immunofluorescence staining, showing positive Keratin 14 expression at P10 culture conditions.

How should XR Kerati. Basal Media and KGS supplement be stored?

The basal medium should be stored at 4°C, while the KGS Growth Supplement should be stored at -20°C. Before use, the supplement should be thawed at 4°C and added to the basal medium at a 1% ratio.

What research applications are suitable for human keratinocyte culture medium?

Human keratinocyte culture medium is commonly used for epidermal biology studies, skin tissue engineering, wound healing models, dermatology research, cosmetic ingredient evaluation, and epithelial cell function studies.

XR Keratinocyte Medium Kit