Commonly found in: Gel cleansers, lightweight gels, hybrid serums Type: Texture stabilizer / thickener What it does: Keeps water-based formulas stable, giving them elegant glide and consistent texture.

Commonly found in: Soothing creams, cleansers, post-treatment care Type: Conditioning & calming agent What it does: Reduces irritation and promotes healthy renewal for smoother, more comfortable skin.

Commonly found in: Brightening serums, dark-spot correctors Type: Gentle brightening active What it does: Slows pigment formation for gradual, even radiance without destabilizing the barrier.

Commonly found in: Exfoliating toners, serums, chemical peels Type: Chemical exfoliant What it does: Dissolves the bonds between dead skin cells, helping to refine texture, improve clarity, and support smoother skin over time.

Commonly found in: Gels, soothing masks, lightweight moisturisers Type: Soothing and hydrating agent What it does: Provides lightweight hydration while calming irritation and supporting skin comfort.

Commonly found in: Cleansers, toners, hydrating serums Type: Building blocks of proteins / mild surfactants What they do: Maintain hydration and pH balance; certain amino acids form gentle cleansers that respect the skin barrier.

Commonly found in: Toners, clarifying treatments Type: Astringent and pH-balancing agent What it does: Helps refine the appearance of pores and restore skin balance, though it must be carefully formulated to avoid irritation.

Commonly found in: Antioxidant serums, brightening creams, SPF hybrids Type: Antioxidant / brightening vitamin What it does: Protects against oxidative damage and supports collagen synthesis for clearer tone.

Commonly found in: Rich moisturisers, barrier-repair products Type: Nourishing emollient What it does: Deeply conditions the skin, helping to improve dryness and reinforce the lipid barrier.

Commonly found in: Treatment serums, creams for uneven skin tone Type: Multi-functional active What it does: Helps reduce redness, refine texture, and improve the appearance of uneven tone while being relatively gentle compared to stronger actives.

Commonly found in: Retinol alternatives, night serums Type: Plant‑derived retinoid alternative What it does: Promotes renewal and firmness without the irritation of standard retinoids.

Commonly found in: Recovery creams, calming masks Type: Soothing humectant What it does: Binds water while teaching sensitized skin to stay calm, ideal post‑exfoliation.

Commonly found in: Cleansers, moisturizers, toners Type: Natural hydrator / osmoprotectant What it does: Balances water levels inside cells, reducing tightness after cleansing.

Commonly found in: Acne treatments, spot correctors, cleansers Type: Antibacterial active What it does: Targets acne-causing bacteria and helps reduce inflammation, though it may cause dryness or sensitivity with frequent use.

Commonly found in: Rarely used in modern skincare Type: Antibacterial agent What it does: Previously used for its antimicrobial properties, but largely discontinued due to risk of skin sensitivity and reactions.

Commonly found in: Supplements, some topical formulations Type: Vitamin (B7) What it does: Supports overall skin health, though topical benefits are limited compared to internal nutritional support.

Commonly found in: Serums, moisturisers, toners Type: Humectant / solvent What it does: Helps attract moisture to the skin while improving the absorption and texture of formulations.

Commonly found in: Eye creams, firming gels Type: Circulation‑boosting antioxidant What it does: Helps reduce puffiness and dullness by improving micro‑circulation.

Commonly found in: Clay masks, detox treatments Type: Absorbent clay What it does: Draws out excess oil and impurities from the skin, helping to clarify and refine pores.

Commonly found in: Pollution‑defense serums, gentle cleansers Type: Antioxidant botanical What it does: Neutralizes free radicals and calms redness from external stressors.

Commonly found in: Cleansing oils, balms, nourishing treatments Type: Emollient What it does: Helps soften and condition the skin while supporting moisture retention.

Commonly found in: Serums, calming treatments, facial oils Type: Soothing botanical extract What it does: Helps calm irritation and support overall skin balance through its anti-inflammatory properties.

Commonly found in: Repair creams, soothing serums Type: Botanical healing agent What it does: Stimulates collagen, reduces inflammation, and strengthens compromised barriers.

Commonly found in: Barrier moisturizers, overnight masks Type: Lipid molecules (skin‑identical) What they do: Fill cracks in the barrier, sealing moisture and improving softness long‑term.

Commonly found in: Exfoliating products, toners, cleansers Type: AHA / pH adjuster What it does: Gently exfoliates while also helping to maintain the formulation’s pH balance.

Commonly found in: Cleansers, masks, detox treatments Type: Absorbent ingredient What it does: Draws out impurities and excess oil, helping to deeply cleanse the skin.

Commonly found in: Facial oils, moisturisers Type: Omega-rich emollient What it does: Helps nourish the skin and support barrier function with essential fatty acids.

Commonly found in: Cleansing balms, moisturisers, oils Type: Emollient / occlusive What it does: Helps soften and seal in moisture, though it may feel heavy or clog pores for some skin types.

Commonly found in: Creams, serums, supplements Type: Structural protein What it does: Helps maintain skin firmness and elasticity, though topical collagen primarily supports hydration rather than rebuilding structure.

Commonly found in: Moisturizers for dry or aging skin Type: Structural lipid What it does: Regulates fluidity in the barrier, supporting elasticity and comfort.

Commonly found in: Moisturizers, primers, sunscreens Type: Conditioning polymer /occlusive What it does: Creates a breathable film that keeps water in and gives a velvety feel without clogging pores.

Commonly found in: Brightening and anti‑aging serums Type: Delivery enhancer What it does: Improves absorption and stability of actives like niacinamide and arbutin for stronger results with less irritation.

Commonly found in: Nearly all water‑based skincare Type: Chelating agent What they do: Bind trace metals in water, improving formula stability and preventing oxidation.

Commonly found in: Barrier‑rescue serums, city‑shield moisturizers Type: Environmental stress‑protectant What it does: Defends against heat, UV, and pollution by stabilizing cellular proteins and membranes.

Commonly found in: Modern preservative systems Type: Preservative blend What they do: Keep skincare fresh, safe, and effective without parabens; gentle enough for daily use.

Commonly found in: Moisturisers, creams, lotions, balms Type: Softening and smoothing agents What they do: Help soften the skin by filling in gaps between skin cells, improving texture and reducing roughness while supporting moisture retention.

Commonly found in: Advanced serums, regenerative treatments, anti-ageing formulations Type: Cell-communicating proteins What they do: Support skin renewal by signalling cells to repair and regenerate, helping improve the appearance of fine lines and overall skin texture over time.

Commonly found in: Cleansers, aromatherapy-based skincare, spot treatments Type: Essential oil / antimicrobial agent What it does: Provides a refreshing sensation while offering mild antibacterial properties, though it may be sensitising for some skin types if not carefully formulated.

Commonly found in: Antioxidant serums, Vitamin C formulations Type: Antioxidant stabiliser What it does: Enhances the stability and effectiveness of other antioxidants while helping protect the skin from environmental damage.

Commonly found in: Preservative systems (now largely restricted) Type: Preservative What it does: Prevents microbial growth, though its use is limited due to potential irritation and safety concerns.

Commonly found in: Every hydrating product Type: Primary humectant What it does: Attracts water, maintains elasticity, and keeps skin soft throughout the day.

Commonly found in: Exfoliating toners, peels Type: Alphahydroxyacid(AHA) What it does: Dissolves dead skin cells, smooths roughness, and encourages collagen renewal.

Commonly found in: Serums, antioxidant treatments, moisturisers Type: Antioxidant botanical extract What it does: Helps protect the skin from environmental stress while supporting overall skin clarity and balance.

Commonly found in: Cleansers, soaps, nourishing creams Type: Nourishing and conditioning ingredient What it does: Provides gentle hydration and mild exfoliation due to naturally occurring lactic acid, helping soften and smooth the skin.

Commonly found in: Serums, toners, soothing treatments Type: Antioxidant and calming agent What it does: Helps reduce irritation and protect the skin from oxidative stress while supporting a more balanced, even appearance.

Commonly found in: Facial oils, moisturisers, calming treatments Type: Omega-rich emollient What it does: Helps nourish the skin and support barrier function while maintaining a lightweight, non-greasy feel.

Commonly found in: Brightening serums Type: Targeted pigment correctors What they do: Reduce oxidative triggers of melanin formation, improving stubborn dark spots.

Commonly found in: Serums, sprays, moisturizers Type: Water‑binding polymer What it does: Draws and retains moisture, plumping fine lines and improving texture.

Commonly found in: Antiseptic treatments, spot applications Type: Oxidising agent What it does: Helps kill bacteria, but can be harsh on the skin and may disrupt healthy tissue with frequent use.

Commonly found in: Pigmentation treatments, dark spot correctors Type: Skin-lightening agent What it does: Reduces melanin production to improve the appearance of hyperpigmentation, often regulated due to safety considerations.

Commonly found in: Moisturizers, hand creams Type: Humectant What it does: Deliver long‑lasting hydration by fortifying the water reservoir within skin layers.

Commonly found in: Facial oils, moisturisers, cleansers Type: Emollient / skin-conditioning oil What it does: Mimics the skin’s natural sebum, helping to balance oil production while providing lightweight hydration and barrier support.

Commonly found in: Clay masks, cleansers, oil-control treatments Type: Absorbent clay What it does: Gently absorbs excess oil and impurities without over-drying, making it suitable for sensitive and combination skin.

Commonly found in: Brightening serums, pigmentation treatments Type: Skin-brightening active What it does: Helps reduce the appearance of dark spots by inhibiting melanin production, promoting a more even skin tone over time.

Commonly found in: Exfoliating toners, serums, creams Type: Alpha hydroxy acid (AHA) What it does: Gently exfoliates the skin while also supporting hydration, helping improve texture and overall brightness.

Commonly found in: Sensitive-skin exfoliants, serums, creams Type: Polyhydroxy acid (PHA) What it does: Provides mild exfoliation with added hydration, making it suitable for sensitive or compromised skin.

Commonly found in: Balms, creams, lip care products Type: Occlusive emollient What it does: Forms a protective layer on the skin to lock in moisture and prevent dryness.

Commonly found in: Essential oil blends, creams, calming formulations Type: Essential oil / aromatic agent What it does: Offers a soothing sensory experience with mild calming properties, though it may be sensitising for some skin types.

Commonly found in: Brightening treatments, DIY skincare Type: Natural astringent What it does: Contains natural acids that can help brighten the skin, though it may cause irritation or sensitivity if not properly formulated.

Commonly found in: Skincare formulations, supplements Type: Amino acid What it does: Supports skin repair and overall structure by contributing to protein synthesis within the skin.

Commonly found in: Exfoliating products, brightening formulations Type: Alpha hydroxy acid (AHA) What it does: Gently exfoliates while supporting smoother texture and a more even-looking complexion.

Commonly found in: Serums, exfoliating treatments, acne care Type: Alpha hydroxy acid (AHA) What it does: Provides gentle exfoliation with a larger molecular size, making it suitable for sensitive or acneprone skin.

Commonly found in: Serums, antioxidant formulations Type: Botanical antioxidant What it does: Helps protect the skin from oxidative stress while supporting overall skin clarity and balance.

Commonly found in: Renewal serums and barrier creams Type: Skin‑renewing sugar What it does: Refines texture and complements niacinamide to smooth pigmentation.

Commonly found in: Moisturizers, toners, serums, cleansers Type: Multi‑benefit vitamin What it does: Strengthens barrier, refines pores, improves tone, and supports the skin’s immunity.

Commonly found in: Facial oils, cleansers, nourishing creams Type: Emollient What it does: Rich in fatty acids and antioxidants, it helps soften the skin and support the lipid barrier, though it may feel heavier on some skin types.

Commonly found in: Facial oils, serums, barrier-repair products Type: Essential lipids What they do: Help strengthen the skin barrier, improve moisture retention, and support overall skin resilience.

Commonly found in: Hydrating creams, cleansers, toners, serums Type: Moisturizing vitamin What it does: Binds water, repairs micro‑damage, and boosts lipid synthesis for resilience.

Commonly found in: Firming creams, eye treatments Type: Signaling protein fragments What they do: Encourage collagen and elastin production, improving texture and firmness.

Commonly found in: Serums, mists, moisturizers Type: Solvent / humectant What it does: Enhances penetration and provides a smoother, softer finish.

Commonly found in: Oil‑balancing treatments Type: Vitamin / sebum regulator What it does: Helps balance oily skin and reduces inflammation.

Commonly found in: Antioxidant serums, anti-ageing formulations Type: Antioxidant What it does: Helps protect the skin from oxidative stress while supporting a more even tone and overall skin resilience.

Commonly found in: Serums, creams, treatment products Type: Vitamin A derivative What it does: Accelerates cell turnover and supports collagen production, helping improve texture, fine lines, and overall skin clarity.

Commonly found in: Night serums, creams, anti-ageing products Type: Vitamin A derivative What it does: A milder form of retinoid that helps refine texture, improve tone, and support gradual skin renewal.

Commonly found in: Cleansers, masks, exfoliating treatments Type: Physical exfoliant What it does: Gently removes dead skin cells to smooth texture and improve skin brightness.

Commonly found in: Acne treatments, exfoliating toners Type: Oil‑soluble exfoliant What it does: Clears pores, smooths texture, and minimizes congestion without stripping.

Commonly found in: Moisturisers, creams, balms Type: Rich emollient What it does: Deeply nourishes the skin and supports the barrier by providing essential fatty acids and long-lasting moisture.

Commonly found in: Cleansers, creams, soaps Type: pH adjuster What it does: Helps maintain the correct pH of a formulation, ensuring product stability and skin compatibility.

Commonly found in: Cleansers, foaming face washes, shampoos Type: Surfactant / cleansing agent What it does: Removes oil and impurities by creating foam, though it may be drying or irritating for sensitive skin.

Commonly found in: Sunscreens, moisturisers with SPF Type: UV protection measure What it does: Indicates the level of protection against UVB rays, helping prevent sunburn and long-term skin damage.

Commonly found in: Acne treatments, spot correctors Type: Antimicrobial and keratolytic agent What it does: Helps reduce excess oil and unclog pores, making it effective for managing breakouts.

Commonly found in: Moisturizers, serums, facial oils Type: Lightweight emollient What it does: Mimics skin’s natural sebum for soft, non‑greasy moisture and improved barrier performance.

Commonly found in: Gentle cleansers Type: Amino‑acid‑based surfactants What they do: Cleanse effectively while maintaining a neutral pH and respecting barrier health.

Commonly found in: Acne treatments, cleansers, spot correctors Type: Essential oil / antimicrobial agent What it does: Helps reduce acne-causing bacteria and calm inflammation, though it may be sensitising if not properly formulated.

Commonly found in: Mineral sunscreens, SPF formulations Type: Physical UV filter What it does: Sits on the skin’s surface to reflect and scatter UV rays, providing broad-spectrum sun protection.

Commonly found in: Brightening serums, pigmentation treatments Type: Skin-brightening active What it does: Helps reduce the appearance of dark spots and uneven tone by interfering with pathways that trigger excess pigment production.

Commonly found in: Moisturizers, sunscreens, antioxidant serums Type: Lipid‑soluble antioxidant What it does: Protects cell membranes and supports ceramide stability, slowing oxidative stress.

Commonly found in: Hydrating cleansers, barrier creams Type: Sugar‑based humectant What it does: Helps cells capture and retain moisture under environmental stress like heat or dryness.

Commonly found in: Masks, creams, traditional skincare formulations Type: Anti-inflammatory botanical What it does: Helps calm the skin and improve the appearance of uneven tone while supporting overall skin clarity.

Commonly found in: Hand creams, body lotions, barrier moisturizers Type: Natural moisturizing factor What it does: Softens hardened surface cells and draws water deeper, improving elasticity.

Commonly found in: Balancing creams, acne serums Type: Mineral regulator / hydrator What it does: Controls sebum, supports healing, and offers mild antibacterial protection — especially useful in humid climates.