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Microneedles help improve skin appearance and deliver skin treatments effectively, but safety concerns need more research and regulation.

Polysaccharides have many health benefits and are used in drugs, but isolating and purifying them is complex and requires careful methods.

The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.

St. John's Wort extract and oil safety in cosmetics is unclear; more data needed on photosensitization, toxicity, and human irritation.

The document concludes that cosmetics need biocompatible, eco-friendly ingredients due to aging populations and demand for effective products.

Scientists improved an enzyme to better produce a hair growth-promoting chemical from an immunosuppressant.

The document says biodegradable cosmetics and packaging are better for the environment and user experience.

Hair care products are important for appearance and self-esteem, and choosing the right ones can help maintain healthy hair.

Hair and nail changes can indicate health issues, including cancer and side effects from cancer treatments.

Copper and iron cause keratin damage in hair by converting methionine to homocysteine.

Some vegetables from Northern Thailand show promise for health benefits, including hair loss treatment and antioxidant properties.

Plasma jet treatments can clean hair and might replace peroxide for hair care.

Plant-made bFGF helps cells grow and boosts collagen.

Hair health is influenced by genetics, aging, and environmental factors, with proper care needed to maintain it.

Juglone from walnut extracts may help repair damaged hair.

Hesperidin from orange peels is a promising natural ingredient for skincare due to its multiple beneficial properties.

Grape seed oil improved hair quality the most, followed by rosehip and safflower seed oils, and reduced damage from shampoo.

Biopolymers are increasingly used in cosmetics for their non-toxicity and skin benefits, with future biotech advancements likely to expand their applications.

Nanomaterials can improve hair care products and treatments, including hair loss and alopecia, by enhancing stability and safety, and allowing controlled release of compounds, but their safety in cosmetics needs more understanding.

Microbial biosurfactants could be a safer and environmentally friendly alternative to chemical surfactants in cosmetics.

Plant sterols have health benefits like lowering cholesterol, but more research is needed to understand their effects and improve their extraction and sustainability.

Equisetum debile extracts may help with skin whitening, anti-wrinkle, and anti-hair loss treatments.

Red ginseng oil is believed to have various health benefits and is safe, but more research is needed to fully understand how it works.

A tough membrane between the outer and inner layers of human hair protects it from damage.

Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.

Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.

Frequent hair coloring and styling can damage hair and cause breakage or loss.

Oxidative stress damages hair and contributes to aging, and managing it can help maintain hair health.

Trichoscopy helps diagnose hairline recession causes in Egyptian women, with androgenetic alopecia being the most common.