azelaic acid is a naturally occurring dicarboxylic acid used as a topical skin medication and cosmeceutical ingredient. It is commonly formulated in creams, gels, foams, and serums for acne, rosacea, and uneven skin tone. In cosmetic care, it is used to support clearer-looking skin and more even pigmentation. It is not a surgical material or implant, and it is not used in reconstructive operations as a structural substance.

tazarotene is a prescription topical retinoid (a vitamin A–derived medication) applied to the skin. It is commonly used in dermatology for acne and plaque psoriasis. In cosmetic-focused care, it may also be used to support smoother-looking texture and more even tone in selected patients. It is a non-surgical treatment that is typically part of a broader skin-care plan rather than a standalone “procedure.”

adapalene is a topical retinoid medication used on the skin. It is most commonly used to treat acne by helping keep pores from clogging. It is also used in some aesthetic dermatology settings to support smoother skin texture and more even tone. It is a non-surgical, non-injectable treatment used in both medical dermatology and cosmetic care.

tretinoin is a prescription retinoid, a vitamin A–derived medication used mainly on the skin. It is most commonly applied topically to treat acne and signs of photoaging (sun-related skin aging). In aesthetic care, it is used as a non-surgical skin-quality therapy, sometimes alongside procedures. tretinoin also has a separate, specialized systemic use in oncology that is distinct from cosmetic use.

retinaldehyde is a vitamin A–derived ingredient (a retinoid) used in topical skin products. It sits between retinol and prescription retinoic acid in the skin’s conversion pathway. It is most commonly used in cosmetic dermatology and medical-grade skincare for photoaging and acne-prone skin. It may also be used as part of pre- and post-procedure skincare planning in aesthetic practices, depending on clinician preference and skin tolerance.

retinol is a vitamin A–derived ingredient used in topical skincare. It belongs to the broader family of compounds called retinoids, which influence how skin cells grow and mature. In cosmetic dermatology and aesthetic medicine, retinol is commonly used to support smoother texture and more even tone. It is used for appearance-focused skin concerns rather than reconstructive surgery.

A retinoid is a vitamin A–related compound used in dermatology and aesthetic skin care. A retinoid may be prescribed as a topical medication or used as an oral medication in selected conditions. A retinoid is commonly used in cosmetic care to address acne, uneven pigment, and signs of photoaging. A retinoid is also used in medical dermatology, and it may be part of skin preparation or maintenance around some aesthetic procedures.

An **active ingredient** is the component in a product that is intended to create a specific biological or functional effect. In skincare, it often refers to ingredients that target concerns like acne, pigment, texture, or aging changes. In medical settings, it can describe the drug or agent responsible for the therapeutic effect (topical, injectable, or procedural). It is used across **cosmetic** care and **reconstructive** care, depending on the product and clinical goal.

A cosmeceutical is a cosmetic product marketed for benefits that go beyond basic cleansing or beautifying. It typically contains biologically active ingredients intended to improve the look and feel of skin. “cosmeceutical” is a marketing term, not a universal legal drug category, and definitions vary by region. It is commonly used in cosmetic care and as supportive skin care around some reconstructive or medical treatments.

A pigment laser is an energy-based device used to target unwanted pigment in the skin. It is commonly used in cosmetic dermatology and aesthetic medicine to improve uneven coloration. It can also be used in reconstructive settings, such as reducing certain pigment-related marks after injury or surgery. The goal is to break up or reduce pigment so it becomes less visible over time.

A vascular laser is an energy-based device designed to treat visible blood vessels and vascular-related redness in the skin. It works by targeting blood (hemoglobin) within unwanted or abnormal vessels while aiming to minimize injury to surrounding skin. It is commonly used in cosmetic dermatology and plastic surgery for facial redness and small vessels. It is also used in reconstructive care for certain vascular lesions and red, vascular scars.

scar laser is a laser-based treatment used to improve the appearance and sometimes the feel of scars. It works by delivering controlled light energy to the skin to trigger remodeling in scar tissue. scar laser is commonly used in cosmetic dermatology and plastic surgery, and it can also be part of reconstructive care after injury or surgery. The goal is usually improvement rather than complete removal, and results vary by clinician and case.

endovenous laser ablation is a minimally invasive procedure that closes an abnormal superficial vein from the inside using laser energy. It is most commonly used to treat venous reflux that contributes to varicose veins and related symptoms. It can be performed for functional concerns (heaviness, swelling) and for cosmetic concerns (prominent, bulging veins). It is typically done with ultrasound guidance through a small needle puncture rather than a large incision.

vein ablation is a procedure that intentionally closes a problematic vein so blood is redirected into healthier veins. It is most commonly used for superficial venous insufficiency that leads to varicose veins, heaviness, or swelling. It is used in both functional (symptom-focused) vein care and cosmetic care when visible veins are a concern. Most modern vein ablation techniques are minimally invasive and performed with image guidance (often ultrasound).

Spider vein treatment is a set of medical and aesthetic techniques used to reduce the appearance of small, visible surface veins. It most often targets “spider veins” (fine red, blue, or purple lines) on the legs and sometimes the face. Common methods include injection-based therapy and energy-based devices that close or fade the vessels. It is used primarily for cosmetic improvement, and sometimes to address associated symptoms or underlying vein patterns.

sclerotherapy is a minimally invasive procedure that treats certain veins or vascular lesions by injecting a medication (a “sclerosant”) into the target vessel. The injected agent irritates the vessel lining so the vein closes and is gradually replaced by scar-like tissue. It is commonly used in cosmetic medicine for spider veins and small varicose veins, and in reconstructive/vascular care for selected venous or lymphatic malformations. The exact technique and sclerosant used vary by clinician, indication, and local regulatory approvals.

microneedling with PRP is a minimally invasive skin procedure that combines controlled micro-injuries (microneedling) with platelet-rich plasma (PRP) from the patient’s own blood. PRP is a processed blood component with a higher concentration of platelets than baseline blood. The goal is to support skin repair pathways that can improve texture and the appearance of scars or fine lines over time. It is commonly used in cosmetic dermatology and aesthetic plastic surgery settings, and it may also be used for scar-focused restorative care.

PRP stands for platelet-rich plasma, a concentrated portion of a person’s own blood that contains a higher-than-baseline level of platelets. It is prepared by drawing blood and processing it to separate and concentrate platelets in plasma. PRP is used in both cosmetic and reconstructive settings as an injectable or topical biologic adjunct. In aesthetic care, it is commonly discussed for skin quality, hair concerns, and as a companion to procedures such as microneedling.

facial feminization surgery is a group of procedures that adjust facial features to appear more typically feminine. It can involve bone reshaping, soft-tissue repositioning, and/or volume restoration. It is commonly used in cosmetic surgery and in reconstructive or gender-affirming surgical care. The exact procedures included vary by clinician and case.