glossary
Aesthetics Jargon, Explained.
Aesthetics can be full of technical words that make treatments sound more complicated than they need to be.
At The Renovo Clinic, we believe you should understand what is happening to your skin, what a treatment is designed to do, and why it may or may not be right for you.
Here are some of the most common terms explained in plain English.
Skin Structure
The outer layer of your skin. It acts like a protective barrier between your body and the outside world.
The deeper layer of skin underneath the surface. This is where collagen, elastin, blood supply, hair follicles and many repair processes are found.
The protective outer layer of your skin. A healthy barrier keeps moisture in and irritants out.
The natural oil your skin produces. Too much can contribute to congestion, while too little can leave skin feeling dry and tight.
Tiny openings in the skin where oil and sweat can come out. Pores cannot permanently open or close, but they can look larger when congested or stretched.
The amount of water in the skin. Hydrated skin usually looks smoother, fresher and more plump.
Water escaping from the skin. When the skin barrier is damaged, more water is lost, which can make skin feel dry, tight or irritated.
Skin Cells and Repair
Cells in the skin that help produce collagen, elastin and other structures that keep skin firm and supported.
The main cells in the outer layer of the skin. They help form the skin barrier.
Cells that produce pigment in the skin. They are involved in tanning, pigmentation and dark marks.
Cell multiplication. In aesthetics, this usually refers to the skin making new cells as part of repair or renewal.
The process of old skin cells shedding and being replaced by new ones.
Supporting the skin’s natural repair and renewal processes, rather than simply covering up a concern.
The longer-term rebuilding phase after skin has been stimulated. This is when collagen and skin structure can gradually improve.
The chain reaction your body uses to repair tissue after controlled injury, such as microneedling.
Collagen, Elastin and Skin Quality
A protein that gives skin structure, firmness and support. Collagen naturally reduces with age.
A protein that helps skin stretch and bounce back.
A substance found naturally in the skin that holds water. It helps skin look hydrated and plump.
The support network around your skin cells. Think of it as the scaffolding that helps keep skin firm and healthy.
Looseness in the skin. This can happen with age, weight changes, sun damage or reduced collagen.
A broad term for how the skin looks and feels, including texture, hydration, glow, firmness, pores and smoothness.
How smooth or uneven the skin surface feels.
How well the skin bounces back when stretched.
How supported and tight the skin feels.
Microneedling Terms
A treatment that uses tiny needles to create controlled micro-injuries in the skin. This encourages repair, collagen production and improved skin texture.
Tiny temporary pathways created in the skin during microneedling.
Another name for microneedling. It means encouraging the skin to produce new collagen.
How deep the microneedling device enters the skin. Different depths are used for different areas and concerns.
Redness in the skin. This is common after treatments like microneedling or peels.
Tiny dots of bleeding that can happen during deeper microneedling. It is not always needed for results.
The recovery period after a treatment. This may include redness, dryness, peeling, swelling or sensitivity.
Injectable Skin Treatment Terms
An injectable treatment designed to improve skin hydration, quality and texture without adding volume like filler.
Small fragments derived from DNA that are used in skin treatments to support repair, hydration and skin quality.
A type of polynucleotide often used in regenerative skin treatments. It is associated with skin repair and recovery.
A skin revitalising injectable containing hyaluronic acid, vitamins, amino acids, minerals and other ingredients designed to support skin quality.
A technique where small amounts of product are placed into the skin using multiple tiny injections.
A term used for treatments that aim to improve skin structure and quality from within.
Hyaluronic acid that is not designed to create volume or shape. It is usually used for hydration and skin quality.
Hyaluronic acid that has been made thicker and longer-lasting. This is commonly used in dermal fillers.
Small raised bumps that can appear straight after certain injectable skin treatments. These usually settle as the product disperses.
Bio Aesthetic Points. A specific injection pattern used for some skin booster treatments.
Chemical Peel Terms
A treatment that uses acids to exfoliate and renew the skin surface.
A lighter peel that works mainly on the top layers of skin.
A stronger peel that reaches deeper into the skin and usually has more downtime and risk.
Trichloroacetic acid. A strong peeling acid used in some professional chemical peels.
An acid that works well for oily, congested and acne-prone skin because it can move through oil.
An exfoliating acid often used for dullness, texture and early signs of ageing.
A gentler exfoliating acid that can help with hydration, brightness and smoother skin.
A larger, slower-penetrating acid often used for sensitive or pigment-prone skin.
An ingredient often used in pigmentation treatments to help reduce the appearance of uneven tone.
An ingredient commonly used in pigmentation-focused skincare and treatments.
Stopping the action of a peel. Some peels need neutralising, while others are self-neutralising or removed according to protocol.
A white or greyish change on the skin during certain peels. It can indicate protein coagulation and needs careful interpretation by the practitioner.
Visible shedding of the skin after treatment. More peeling does not always mean a better result.
Anti-Wrinkle Treatment Terms
Prescription treatments that temporarily relax targeted facial muscles to soften lines caused by expression.
Lines that appear when you move your face, such as frown lines or forehead lines.
Lines that are visible even when the face is relaxed.
The forehead muscle that lifts the eyebrows.
Muscles between the eyebrows that help create frown lines.
A small muscle between the eyebrows that contributes to frown lines.
Lines at the outer corners of the eyes, usually caused by smiling or squinting.
How long it takes for a treatment to start working.
The point where the treatment has reached its strongest visible result.
How long the results usually last.
A measurement used for botulinum toxin dosing. Units are product-specific and should not be compared casually between brands.
Hair Restoration Terms
The condition of the skin on the scalp. A healthy scalp can support a better environment for hair growth.
The structure in the skin that produces a hair.
When hair follicles gradually produce thinner, weaker hairs. This is common in pattern hair loss.
How many hairs are present in an area.
The width of each individual hair strand.
The active stage of the hair cycle where hair is growing.
The stage where hairs naturally fall out before the cycle restarts.
Treatments focused on supporting scalp health, stimulating renewal and improving the appearance of thinning hair.
Common Skin Concerns
Areas of darker pigmentation in the skin.
A type of pigmentation often linked to hormones, sun exposure and inflammation.
Dark marks left after inflammation, spots, injury or irritation.
Texture or marks left behind after acne. This can include dents, uneven skin or pigmentation.
Blocked pores, blackheads, bumps or a generally clogged appearance.
The body’s response to irritation, injury or infection. In the skin, it can show as redness, heat, swelling or sensitivity.
Skin that has become reactive, often from overuse of active ingredients, treatments or barrier damage.
Skin ageing caused by sun exposure. This can include pigmentation, texture changes, fine lines and loss of firmness.
Damage caused by unstable molecules called free radicals. Sun exposure, pollution and lifestyle factors can contribute to this.
Unstable molecules that can damage skin cells.
Ingredients that help protect skin from free radical damage.
Pigmentation means colour in the skin. When people talk about pigmentation as a concern, they usually mean darker patches, marks or uneven skin tone.
Areas of skin that look lighter than the surrounding skin because there is less pigment present.
A common skin condition that can cause facial redness, flushing, sensitivity, visible small blood vessels and sometimes spots or bumps. It is not simply “red skin” and may need medical treatment as well as careful skincare.
A general term for skin that looks red, flushed or inflamed. Redness can come from sensitivity, rosacea, irritation, heat, broken capillaries or active inflammation.
Sudden warmth and redness in the skin, often triggered by heat, alcohol, spicy food, stress, exercise or skincare irritation.
Tiny visible red or purple blood vessels near the surface of the skin. They are commonly seen around the nose, cheeks and chin.
The clinical term for small visible blood vessels on the skin.
A common skin condition involving blocked pores, oil production, bacteria and inflammation. Acne can appear as blackheads, whiteheads, red bumps, pustules, cysts or scarring.
Open clogged pores where trapped oil and dead skin have oxidised, making them appear dark.
Closed clogged pores that appear as small white or skin-coloured bumps.
Small raised bumps on the skin. In acne, these are often red and inflamed.
Spots that contain visible pus. These are often what people think of as classic inflamed spots.
Deeper, painful lumps under the skin. Cystic acne can be more likely to scar and may need medical treatment.
Small, firm white bumps caused by trapped keratin under the skin. They are not the same as spots and cannot be squeezed out like normal congestion.
Tiny oil-filled structures often seen on the nose and chin. They are normal and can look like blackheads, but they are not the same thing.
Pores that look more visible. This can be linked to oil production, congestion, ageing, skin laxity and sun damage.
Treatment Planning Terms
A discussion and assessment before treatment to understand your skin, medical history, goals and suitability.
A reason why a treatment may not be suitable or safe for you.
A small test application used to check how your skin reacts before a full treatment.
A planned series of treatments, rather than a one-off appointment.
Ongoing treatments designed to preserve and support results over time.
Understanding what a treatment can and cannot achieve.
The advice you follow after treatment to protect your skin and support recovery.
Sun protection factor. Daily SPF helps protect the skin from UV damage, pigmentation and premature ageing.
Ingredients that have a specific effect on the skin, such as retinoids, acids, vitamin C or pigment-regulating ingredients.
Vitamin A-based ingredients used for skin renewal, texture, ageing and acne-prone skin. They can be irritating if used incorrectly.
Supporting the skin’s protective layer so it can recover, hold moisture and feel comfortable.