Frequently Asked Questions

Photoaging is skin aging accelerated by repeated exposure to UV light. It shows up as uneven pigmentation, loss of elasticity, fine lines and rough texture. About 80% of facial skin aging has been attributed to UV exposure.

Sunscreen needs to be reapplied every two hours to stay effective. Yet in a recent survey, only 15% said they reapply while out walking and 14% during outdoor exercise. The damage from UV that sunscreen missed builds up every day. DERMA CLASSIC does not replace sunscreen - it cares for what sunscreen could not block.

Most after-sun products focus on surface care: cooling the skin and replenishing moisture. DERMA CLASSIC uses dissolving microneedles to boost skin absorption of active ingredients - in a human application test by an accredited institution, skin absorption rose about 1.9× (+90.4%) versus before use after a single application.

We recommend using it in the evening after outdoor activity, once you have washed your face. It is a two-step routine: apply the patch, remove it after 5–15 minutes, then finish with the gel cream.

Natural aging progresses gradually with age, while photoaging results from accumulated UV exposure, concentrates on exposed areas and progresses faster. About 80% of facial skin aging has been attributed to UV exposure, which is why after-care on days you could not fully block UV matters.

Use it in the evening on days with outdoor activity. The human application test was conducted with twice-weekly use for two weeks. Adjust the interval to your skin condition.

Tiny needles made of water-soluble polymers such as hyaluronic acid pass through the stratum corneum, then dissolve in the skin's moisture and release the ingredients they carry. There is nothing to remove and nothing left behind in the skin.

The needles are designed to be 300–500μm long, and a human application test by an accredited institution recorded an irritation index of 0.00 (non-irritating).

Curved areas such as the eye contour and flat areas such as the forehead have different skin conditions. This technology varies needle length and density by zone within a single patch, securing adhesion on curved areas and delivery volume on flat areas. A patent application for this technology has been filed.

The key compounds in Centella asiatica exist as glycosides with attached sugars, making them large molecules with low skin availability. Enzymes produced by mushroom mycelium remove these sugars, converting them into smaller aglycones. Because the process uses enzymes rather than strong acids or bases, the compounds are not denatured.

It is a functional solution made by bringing plasma into contact with water, known in scientific literature as PAW (Plasma-Activated Water). It replaces the purified water that makes up 60–80% of a typical cosmetic, giving the base itself a function. Prior studies have reported antibacterial and soothing effects.

In a human application test by an accredited institution, skin absorption (Raman spectroscopy) after a single use of the patch was +90.4% versus before use - about 1.9 times. It is a before-and-after self-controlled result on the same participants, not a comparison with competing products.

We hold 12 intellectual property rights in total: 5 patents (1 registered, 4 pending applications), 5 trademarks and 2 designs. Registered patent 10-2812430 covers a composition for preventing and improving skin photoaging using Centella asiatica and Agastache rugosa extracts.

We do not operate our own factory; production is outsourced to specialized manufacturers. Samjung Cosmetic owns the brand and formulations and directly manages quality specifications and verification.

We hold ISO 9001 (quality management), ISO 14001 (environmental management) and ISO 45001 (occupational health and safety) certifications, Venture Company confirmation (Innovative Growth type) and recognition of our dedicated R&D department. The Cica Care Gel Cream is recognized by Korea's Ministry of Food and Drug Safety as a dual-functional cosmetic for brightening and wrinkle improvement.

We run an in-house dedicated R&D department and conduct joint research under industry–academia cooperation agreements with Chungbuk National University and Konyang University. In 2026 we are carrying out a project under the Ministry of SMEs and Startups' Startup Growth Technology Development Program (Didimdol).

Please visit our brand site, dermaclassic.com.

Email our business inquiry address (coo@samjungcos.com) and our team will reply. We can provide our company profile and product catalog in English.

We are currently focused on our own brand. Collaboration proposals are reviewed case by case, so please feel free to contact us.

It varies by country and product configuration. We will provide details upon inquiry.