Ingredient Encyclopedia

Welcome to the Ingredient Encyclopedia

Discover what’s inside your skincare — from retinol to aloe vera — with clear guides on benefits, uses, and safety.

Ingredient Encyclopedia

Allantoin – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Allantoin ($C_{4}H_{6}N_{4}O_{3}$) is a heterocyclic organic compound derived from urea. It is naturally found in the comfrey plant (Symphytum officinale), though it is synthesized in lab settings for high-purity skincare. In dermatology, it is recognized as a keratolytic—meaning it helps to soften the protein (keratin) that holds skin cells together. This allows the skin to hold onto water more effectively and shed dead surface cells more smoothly without the "peel" of an acid. Additionally, Allantoin is a documented cell proliferant, stimulating the growth of healthy new tissue. Because it is also a powerful anti-irritant that forms complexes with irritating agents, it acts as a "chemical cushion," neutralizing the sting of more aggressive actives.

Ingredient Encyclopedia

Panthenol (Pro-Vitamin B5) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Panthenol (1$C_{9}H_{19}NO_{4}$) is the alcohol analog of pantothenic acid (Vitamin B5).2 In biochemistry, it is known as a precursor to Coenzyme A, which is vital for cellular metabolism and the synthesis of fatty acids.3 When applied topically, it is uniquely penetrative; it doesn't just sit on the surface like some humectants but travels deep into the stratum corneum.4 Once absorbed, it converts into pantothenic acid, which stimulates fibroblast proliferation—the process that builds new skin tissue.5 Because it is both a humectant (drawing water in) and an emollient (smoothing the surface), it acts as the "cellular cement" that fills in the cracks of a damaged skin barrier, making it indispensable for rapid recovery.

Ingredient Encyclopedia

Urea – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Urea is a unique, dual-action ingredient that serves as a core component of the skin's Natural Moisturizing Factor (NMF). Its behavior is dictated by concentration: at low levels (2–10%), it acts as a high-performance humectant, binding water to the skin to relieve "tightness" and dehydration; at higher levels (10–40%), it shifts into a keratolytic mode, chemically softening the proteins (keratin) in the skin to break down stubborn, thick buildup like calluses and "bumpy" texture. Unlike aggressive physical scrubs, Urea provides a more uniform smoothing effect while simultaneously supporting barrier health. It is the "gold standard" for treating chronic dryness, cracked heels, and Keratosis Pilaris (KP), provided it is introduced gradually to avoid stinging on compromised skin.

Ingredient Encyclopedia

Glycerin – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Glycerin is a powerful, skin-loving humectant that draws water into the skin to boost hydration, soften dryness, improve comfort, and enhance the performance of every step in your skincare routine. Its gentle, barrier-supportive action makes the skin feel plump, smooth, and consistently moisturised throughout the day, making it one of the most dependable ingredients for all skin types—including dry, oily, sensitive, and combination skin.

Ingredient Encyclopedia

Squalane – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Squalane is a lightweight, skin-identical emollient that delivers instant softness, reduces tight-feeling dryness, and supports a healthy barrier without heaviness. Ideal for dry, combination, oily-prone and sensitive-feeling skin that needs calming, breathable hydration.

Ingredient Encyclopedia

Ceramides – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Ceramides are waxy lipids naturally found in the skin’s outer layer (stratum corneum). Along with cholesterol and fatty acids, they create the barrier matrix — the waterproof shield that prevents water loss and blocks pollutants. As we age or over-cleanse, ceramide levels drop, leading to dryness, flaking, and sensitivity. Replenishing them restores comfort and balance.

Ingredient Encyclopedia

Peptides (e.g., Matrixyl) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Peptides are the quiet architects of renewal — tiny chains of amino acids that help the skin remember how to repair, hydrate, and stay firm. Acting as gentle messengers, they restore balance, reinforce collagen, and soothe the delicate under-eye area with lasting comfort. The Ginseng Peptide Under-Eye Cream (60ml) blends modern peptide complexes with antioxidant-rich ginseng to visibly smooth fine lines, brighten fatigue shadows, and strengthen barrier resilience day after day. Whether used beneath makeup or as an overnight firming layer, it delivers calm confidence — proof that real beauty grows from quiet consistency, not instant transformation. Supported by dermatology-based science and mindful self-care, this guide invites you to understand peptides deeply and integrate them purposefully into your daily ritual.

Ingredient Encyclopedia

Kojic Acid – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Kojic Acid ($C_{6}H_{6}O_{4}$) is a natural metabolite produced by several species of fungi, particularly Aspergillus oryzae (the same mold used in sake fermentation). In dermatology, it is classified as a potent tyrosinase inhibitor. Unlike AHAs that physically peel the skin, Kojic Acid works chemically by chelation—it binds to the copper ions required by tyrosinase (the enzyme responsible for melanin production). By "locking up" these copper ions, Kojic Acid prevents the enzyme from converting the amino acid tyrosine into pigment. Because it is highly potent even at low concentrations, it is valued for its ability to target the "root" of a dark spot without requiring aggressive surface exfoliation.

Ingredient Encyclopedia

Alpha Arbutin – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Alpha arbutin is a gentle, effective skin-brightening ingredient that targets dark spots, hyperpigmentation, and uneven tone. It is widely used in serums and treatments for sun spots, post-acne marks, and age-related discoloration.

Ingredient Encyclopedia

Tranexamic Acid – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Tranexamic Acid ($C_{8}H_{15}NO_{2}$) is a synthetic derivative of the amino acid lysine. In dermatology, it is classified as a powerful plasminogen inhibitor. Unlike AHAs which peel away existing pigment, TXA works "upstream" by inhibiting the activation of plasminogen into plasmin. This process effectively interrupts the chemical conversation between keratinocytes (surface skin cells) and melanocytes (pigment-producing cells). By blocking the inflammatory mediators like prostaglandins and arachidonic acid—which are triggered by UV light and acne—TXA prevents the "pigment alarm" from going off in the first place, making it uniquely effective for chronic, recurring discoloration.

Ingredient Encyclopedia

Mandelic Acid (AHA) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Mandelic acid is a gentle alpha hydroxy acid (AHA) derived from bitter almonds. Its larger molecular size makes it slower to penetrate the skin, which reduces irritation compared to glycolic acid while still promoting exfoliation and brighter, more even skin tone. This guide explains what mandelic acid does, who it suits, how to use it safely, and potential side effects.

Ingredient Encyclopedia

Lactic Acid (AHA) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Lactic acid is a gentle alpha hydroxy acid (AHA) that not only exfoliates dead skin cells but also helps boost hydration. It is one of the most beginner-friendly exfoliating acids, making it a great option for those with dry, sensitive, or mature skin. This guide explains what lactic acid does, who it suits, how to use it correctly, and what to watch out for.

Ingredient Encyclopedia

Salicylic Acid (BHA) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Salicylic Acid is one of the most popular beta hydroxy acids (BHAs) in skincare. Known for its ability to unclog pores and calm inflammation, it's a favourite among dermatologists for treating blackheads, whiteheads, and breakouts.

Ingredient Encyclopedia

Glycolic Acid (AHA) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Glycolic acid is one of the most popular alpha hydroxy acids (AHAs) used in skincare. Known for its ability to exfoliate the skin’s surface, glycolic acid helps to reveal smoother texture, boost radiance, and fade uneven pigmentation. This guide explains what glycolic acid does, who it suits, possible side effects, and how to safely add it to your skincare routine.

Ingredient Encyclopedia

Azelaic Acid – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Azelaic acid is a gentle yet effective multitasker that helps calm redness, manage breakouts, and even skin tone. It is well-tolerated by most skin types, including sensitive and rosacea-prone skin. This guide explains what azelaic acid does, who it suits, how to use it safely, and potential side effects.

Ingredient Encyclopedia

Vitamin C (Ascorbic Acid) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Vitamin C is a brightening antioxidant that supports collagen production and helps protect skin from environmental stressors such as UV damage and pollution.

Ingredient Encyclopedia

Hyaluronic Acid – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Hyaluronic Acid (HA) is a naturally occurring molecule in the skin that binds and retains water, helping keep skin plump, smooth, and hydrated. It can improve skin elasticity, reduce fine lines, and enhance overall skin comfort.

Ingredient Encyclopedia

Niacinamide (Vitamin B3) – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Niacinamide (Vitamin B3) is one of the most researched and versatile skincare ingredients. Known for its ability to calm redness, minimize pores, and support a healthy skin barrier, it's a go-to for all skin types, from sensitive to acne-prone.