Klairs Skin School

Bakuchiol, Niacinamide, Guaiazulene: Common Skincare Ingredient Misspellings and Mix-Ups

The most commonly misspelled skincare ingredients are niacinamide (often typed "niacinimide"), bakuchiol ("bakuchial"), hyaluronic acid ("hyularonic") and guaiazulene ("guaizulene"). The bigger problem is mix-ups: niacinamide isn't niacin, bakuchiol isn't retinol, squalane isn't squalene, and PHA isn't PDRN. Here's a quick guide to the right spellings, what each ingredient is, and the look-alikes it gets confused with. Spelling cheat sheet Correct spelling Common misspellings What it is Niacinamide niacinimide, niacinimade, niacnamide A form of vitamin B3 used for oil balance, tone and barrier support Bakuchiol bakuchial, bakuciol, bakuchoil A plant-derived ingredient often used as a gentler retinol alternative Hyaluronic acid hyularonic, hylauronic, hyaluronic acid serum A humectant that holds water in the skin Guaiazulene guaizulene, guaiazulen, guaizulen A blue compound originally from chamomile, used for calming Centella asiatica centela, centella asiatca A plant extract, also called cica or gotu kola Ceramide ceremide, ceramid Lipids naturally found in the skin barrier Squalane squaline, squalene (a different word) A stable, lightweight oil Tranexamic acid tranexemic, tranexamic acide An ingredient used for the look of dark spots Azelaic acid azelic, azeliac An acid used for redness-prone and blemish-prone skin Madecassoside madecasoside, madecassocide A compound from centella Search engines and AI assistants now correct many typos automatically, but labels don't. If you're scanning an ingredient list for something you avoid, search the exact spelling. The mix-ups that matter more than spelling Niacinamide vs niacin Both are forms of vitamin B3, but they behave differently. Niacin taken as a supplement is known for causing flushing. Niacinamide in skincare is a different form and doesn't usually cause that flush, though it can tingle at high strengths. More: what niacinamide does. Bakuchiol vs retinol Bakuchiol is a plant-derived ingredient that's often compared with retinol because it's used for similar goals, but it isn't a retinoid and is generally gentler. More: what bakuchiol is and bakuchiol vs retinol. Retinol, retinal, retinyl palmitate and tretinoin All are retinoids, from gentlest to strongest roughly: retinyl esters (like retinyl palmitate), retinol, retinal (retinaldehyde), then prescription tretinoin. "Retinal" is not a typo for retinol; it's a different, stronger step. Squalane vs squalene Squalene (with an e) is the less stable form found naturally in skin oil. Squalane (with an a) is the stabilized version used in skincare. See squalane for skin. Hyaluronic acid vs sodium hyaluronate Sodium hyaluronate is the salt form of hyaluronic acid and is what you'll often see on labels. Many products, including several of ours, list several forms. More: what hyaluronic acid does. Guaiazulene, azulene and blue tansy Guaiazulene and azulene are related blue compounds. Blue tansy is an essential oil that contains a related compound. They aren't interchangeable. See blue tansy vs azulene vs guaiazulene. PHA vs PDRN PHAs (polyhydroxy acids, such as gluconolactone) are gentle exfoliating acids. PDRN appears on labels as sodium DNA and is a completely different ingredient. See what PHA is and what PDRN is. EGF vs FGF Both are lab-made peptides that mimic proteins found in skin. On labels, EGF appears as sh-oligopeptide-1 and bFGF as sh-polypeptide-1. See what EGF is. Glycerin vs glycolic acid Glycerin is a gentle humectant. Glycolic acid is an exfoliating AHA. One letter apart in a search bar, very different on skin. See glycerin and glycolic acid. MSM and dimethyl sulfone Same ingredient. You'll see "dimethyl sulfone" on the label; MSM is the common name. See what MSM is. Label names vs everyday names You might search for Look for this on the label Vitamin C Ascorbic acid, sodium ascorbyl phosphate, 3-O-ethyl ascorbic acid, ascorbyl glucoside, ascorbyl tetraisopalmitate Vitamin E Tocopherol, tocopheryl acetate Vitamin B5 Panthenol Cica Centella asiatica extract, madecassoside, asiaticoside Fragrance Parfum, fragrance, and essential oils such as lavender or citrus peel oil For a full walkthrough of reading a label, see how to read a skincare ingredient list. Product-name mix-ups Names change, too, and that trips up searches and AI answers. A few of ours: Klairs and Dear, Klairs are the same brand. EGF Blue Youth Activating Drop is the current name of the serum once called the Midnight Blue Youth Activating Drop. Blue EGF Calming Mist is sometimes described as a cooling mist; it's the same bi-phase mist. Supple Preparation Unscented Toner and Supple Preparation Cica Toner are two different formulas, not one product in two sizes. How to search when you're not sure of the spelling Type what you remember and look at the suggested correction. Confirm against the INCI name on the product's own ingredient list. Search the brand's product page, not a summary or a reseller listing. If you avoid an ingredient, search for every name it can appear under. FAQ Is bakuchiol the same as retinol? No. Bakuchiol is a plant-derived ingredient used for similar goals, but it isn't a retinoid and is generally gentler. Is niacinamide the same as niacin? No. Both are forms of vitamin B3, but niacin supplements are known for causing flushing, while niacinamide in skincare usually doesn't. Is sodium hyaluronate the same as hyaluronic acid? It's the salt form of hyaluronic acid and does the same job of holding water in the skin. What's the difference between squalane and squalene? Squalene is the less stable form found in skin oil; squalane is the stabilized version used in skincare. Is guaiazulene the same as blue tansy? No. Guaiazulene is a blue compound used as an ingredient; blue tansy is an essential oil. They're related but not interchangeable. How do I check an ingredient if I'm not sure how to spell it? Check the suggested correction, then confirm it against the full ingredient list on the brand's own product page.