Category Archives: Lasers/Skin Care

Red Light Therapy: Mechanisms, Clinical Applications, and Evidence-Based Considerations

Posted on March 27, 2026 by Donald B. Yoo, M.D.

Red light therapy (RLT), or photobiomodulation (PBM), has emerged as a non-thermal, light-based modality with growing support in the biomedical literature. Its clinical relevance spans dermatology, wound healing, and regenerative medicine. As interest expands, it is important to distinguish between … Continue reading ⭢

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Is there a difference between K beauty skincare and American skincare?

Posted on March 24, 2026 by Donald B. Yoo, M.D.

Korean moisturizers place an emphasis on products that hydrate the skin while leaving a texture that remains light to the touch. Rather than trying to combine all the the ingredients in a single product as American moisturizers sometimes do, Korean … Continue reading ⭢

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XERF Radiofrequency Skin Tightening: A Non-Surgical Option for Facial Rejuvenation

Posted on January 7, 2026 by Donald B. Yoo, M.D.

What Is XERF? XERF is an advanced non-invasive radiofrequency (RF) skin tightening treatment designed to improve skin firmness, elasticity, and overall texture without surgery or injections. It utilizes controlled thermal energy to stimulate the skin’s natural collagen-producing processes, making it … Continue reading ⭢

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Ultherapy PRIME®: A Non-Invasive Approach to Skin Lifting and Tightening

Posted on April 21, 2025 by Donald B. Yoo, M.D.

Abstract Ultherapy PRIME® is an advanced, non-invasive treatment that builds upon the core technology of microfocused ultrasound with visualization (MFU-V). It offers a non-invasive, non-surgical solution for individuals seeking improvement in skin laxity, particularly in the face and neck. By … Continue reading ⭢

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What does BB laser do?

Posted on May 23, 2024 by admin

The BB laser (beauty balm or blemish balm laser) takes its name from the now ubiquitous BB cream that became extremely popular in Korea beginning in the 1980s, and continued to soar in popularity as it came to be introduced … Continue reading ⭢

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How long does neck lift last?

Posted on April 22, 2024 by admin

The aging process is continual, and a neck lift is a surgical procedure to address and improve some of the signs of aging along the neckline and jawline. Typically the results of a neck lift will last ten to fifteen … Continue reading ⭢

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Oligio X Next Generation K-Beauty Skin Tightening

Posted on April 1, 2024 by admin

The aging process of the skin involves an accumulation of extrinsic and intrinsic factors that contribute to increasingly loose, sagging skin with pigmentary dyschromias. Though we have little control over the intrinsic factors (genetic and cellular) that cause our skin … Continue reading ⭢

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What’s the best treatment for sun spots, hyperpigmentation and solar lentigines?

Posted on March 13, 2024 by admin

Light amplification by stimulated emission of radiation, or laser devices, provide focused energy delivery to precise targets in the skin while minimizing collateral injury. Prior to 2012, Q-switched lasers delivering light energy at nanosecond wavelengths allowed for pulsed energy delivery … Continue reading ⭢

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Mask of Pregnancy – Melasma!

Posted on July 12, 2022 by admin

Melasma is a condition where gray to brown patches appear on the face. It can occur in all skin types but more commonly on darker skin tones. Melasma occurs in 50-70% of pregnant women hence the nickname “pregnancy mask”. This … Continue reading ⭢

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Palms are sweaty, knees weak, arms are heavy.

Posted on May 9, 2022 by admin

Hyperhidrosis is a condition that involves excessive sweating in the hands, underarms, face, or extremities not necessarily due to exercise or body temperature. Typically, the body’s sweat glands produce enough perspiration during exercise, fever, or under stress to regulate the … Continue reading ⭢

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