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Micro-needling effectively improves wrinkles, scars, and hair growth, but proper technique and safety are important.

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

Encapsulated Garcinia mangostana extract in cream penetrates skin better than other forms.

CARB is a strong barrier in human hair that prevents dye penetration.

Massage increases how deep both rigid and flexible liposomes can go into skin, with flexible ones going deeper, and covering the skin (occlusion) helps rigid ones more.

New imaging techniques show testosterone delays hair growth and shrinks follicles in mice, but have limited depth for viewing.

Nanoparticles around 600-700 nm can effectively enter and stay in hair follicles for days, which may help in delivering drugs to specific cells.

Confocal Laser Scanning Microscopy (CLSM) is a useful tool for studying how drugs interact with skin and diagnosing skin disorders, despite some limitations.

A 645-nm diode laser effectively penetrates swine soft tissues, suggesting predictable therapeutic effects.

Hair follicles are important for drug delivery through the skin, but better methods are needed to understand and improve this process.

Nanoparticles can improve skin treatments by better targeting hair follicles, but more research is needed for advancement.

Ablative fractional resurfacing could improve how well topical drugs penetrate the skin, but more research is needed to fine-tune the method.

Medium to larger nanogels effectively deliver drugs through hair follicles when heated.

Fractional CO2 laser treatment significantly boosts drug and nanoparticle skin absorption, especially through hair follicles.

Reflectance confocal microscopy is a useful, non-invasive tool for diagnosing some skin diseases, with potential for future improvements.

Using dual-frequency ultrasound with microbubbles can potentially improve the delivery of hair growth treatment through the skin and enhance hair growth.

Zinc pyrithione dissolves quickly on the skin and in hair follicles, especially in smaller particles.

A new hair transplant method showed promising results and a study found how deep a CO₂ laser can penetrate skin.

Researchers developed a new skin patch that delivers more finasteride into the skin, potentially improving treatment for hair loss and prostate issues.

RCM and OCT are effective for diagnosing and monitoring hair-related skin diseases but lack standardized protocols and need more research.

Particles around 100 nm can penetrate and stay in hair follicles without passing through healthy skin, making them safe for use in topical products and useful for targeted drug delivery.

Deeper microneedling boosts hair growth, with 0.6mm needles and minoxidil being most effective.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Medium lipophilic substances penetrate skin best, and adding ethanol can increase delivery to hair follicles.

Researchers created a skin treatment that could effectively deliver medication into hair follicles.

Hair follicles help substances penetrate the skin faster and more effectively.

Zinc oxide nanoparticles in sunscreen do not penetrate deep into the skin.

Nano-sized lipid particles increase dexamethasone's skin penetration and create a reservoir in the skin layers.

Smaller nanoemulsions can penetrate skin and hair follicles better, which may be useful for delivering drugs and vaccines through the skin.

Proretinal nanoparticles improve skin absorption and reduce irritation of topical retinoids.