Supple Preparation Unscented Toner
Sensitive Skin Holy Grail
Verified reviewer
Pros & cons.
- +Completely fragrance-free and essential-oil-free — zero unnecessary sensitizers
- +Lightweight texture layers beautifully without pilling or stickiness
- +Centella and licorice root provide genuine anti-inflammatory and soothing benefits
- +Ideal for the 7-skin method with its thin, fast-absorbing consistency
- +PETA-certified cruelty-free and Vegan Society approved
- +Works safely with actives like retinol, vitamin C, and chemical exfoliants
- +Over 8 years of real-world data proving tolerability across sensitive skin types
- +pH-balanced formula preps skin for better absorption of subsequent products
- −Thin consistency may feel insufficient for very dry skin as a single application
- −Basic screw-top packaging makes dispensing imprecise — a pump would be preferable
- −Contains caprylic/capric triglyceride which may concern fungal acne-prone users
- −Slightly higher priced than comparable K-beauty hydrating toners
- −Copper tripeptide-1 likely present at too low a concentration for meaningful anti-aging benefit
The full review.
In 2018, Klairs responded to a specific need despite having a bestseller. The original Supple Preparation Toner was a K-beauty staple, but customers with eczema, rosacea, and contact dermatitis asked for a version without essential oils. Klairs removed all lavender and ylang-ylang; the unscented version soon outsold the original. Sometimes the best formula is the one that gets out of its own way.
The ingredient list focuses on hydration without irritation. Sodium hyaluronate acts as the primary humectant. Betaine, a naturally derived amino acid, reinforces osmotic hydration, while dimethyl sulfone provides anti-inflammatory support backed by preliminary research in joint and skin health. The centella asiatica extract contains madecassoside and asiaticoside, compounds that stimulate collagen production and calm redness. Licorice root extract adds brightening via glabridin and anti-inflammatory effects via glycyrrhizin. Beta-glucan, a polysaccharide, pulls moisture into the skin and calms it like a gentler version of hyaluronic acid.
What is absent matters. There is no denatured alcohol, no fragrance, no essential oils, and no sulfates. The preservative system uses chlorphenesin and 1,2-hexanediol instead of parabens, making the formula tolerant across skin types. Copper tripeptide-1 appears at the end of the ingredient list; at this concentration, it acts as a supporting player rather than a main active.
The texture is simple. It is thinner than the original scented version—more like a watery essence than a traditional toner—and absorbs with almost no residue. This lightweight consistency makes it a top recommendation for the Korean 7-skin method. While most toners get sticky or pill by the third layer, this one stays cooperative through seven.
The toner delivers immediate comfort and a plumping effect. Skin feels softer minutes after the first application, suggesting the hydration penetrates rather than just sitting as a cosmetic film. For reactive skin, there is no tingling, flushing, or burning. It simply absorbs and works.
The track record is clear. Over 9 million units of the Supple Preparation Toner line have sold, with the unscented version as the top seller. It won the 2025 Hasaki Award for Most Loved Skincare Product despite fierce competition in the Asian beauty market. User reviews consistently note that it hydrates without being heavy, works on sensitive skin, and layers well with other products.
There are limitations. If you have very dry skin and want a thick, nourishing coat, a single application may feel too lightweight. The packaging is a basic screw-top plastic bottle, which is less precise than a pump or dropper. At around $22 for 180 mL, it is moderately priced for a K-beauty toner, not a budget steal, though the cost per use is reasonable if you do not layer heavily.
The value is in trust. Millions of people with reactive, difficult skin types have tested this toner, and it passes. It is not a treatment step or a product loaded with trendy actives at high concentrations. It is a functional hydration base that helps the rest of your routine work better. For sensitive skin, that reliability is more important than a flashy ingredient list.
Ingredient analysis.
Full INCI list
Water, Butylene Glycol, Dimethyl Sulfone, Betaine, Caprylic/Capric Triglyceride, Natto Gum, Sodium Hyaluronate, Disodium EDTA, Centella Asiatica Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Polyquaternium-51, Chlorphenesin, Tocopheryl Acetate, Carbomer, Panthenol, Arginine, Luffa Cylindrica Fruit/Leaf/Stem Extract, Beta-Glucan, Althaea Rosea Flower Extract, Aloe Barbadensis Leaf Extract, Hydroxyethylcellulose, Portulaca Oleracea Extract, Lysine HCl, Proline, Sodium Ascorbyl Phosphate, Acetyl Methionine, Theanine, Copper Tripeptide-1
Skin match.
The science.
The Science
The Klairs Supple Preparation Unscented Toner uses several ingredients with well-documented dermatological evidence. Sodium hyaluronate, the sodium salt form of hyaluronic acid, is one of the most studied humectants in skincare. Its lower molecular weight than native hyaluronic acid allows better penetration into the stratum corneum to bind water and improve skin hydration. A 2019 systematic review in the Journal of Clinical and Aesthetic Dermatology confirmed that topical hyaluronic acid preparations consistently improve skin hydration and elasticity.
Centella asiatica extract contains four key triterpenoids — madecassoside, asiaticoside, madecassic acid, and asiatic acid — studied extensively for wound healing and anti-inflammatory activity. A 2016 study in the International Journal of Molecular Sciences shows that centella asiatica promotes collagen type I synthesis and stimulates glycosaminoglycan production, which supports the skin's own hyaluronic acid levels. This works synergistically with the exogenous sodium hyaluronate in the formula.
Glycyrrhiza glabra (licorice) root extract contains glabridin, which inhibits tyrosinase activity and reduces melanin production. Research in the Journal of Agricultural and Food Chemistry (2003) confirmed glabridin's anti-inflammatory properties by inhibiting superoxide anion production and cyclooxygenase activity. In this formula, it works with centella asiatica for a dual-action anti-inflammatory approach.
Beta-glucan, from oat or yeast sources, acts as both a humectant and an immunomodulator. A 2005 study in the Journal of Drugs in Dermatology found that topical beta-glucan improved skin hydration and reduced fine lines. Its ability to stimulate macrophage activity supports skin repair, complementing the wound-healing properties of the centella asiatica extract.
The estimated 0.35-0.80% concentration of panthenol (pro-vitamin B5) strengthens the barrier. Research shows panthenol penetrates the stratum corneum and converts to pantothenic acid, which is essential for coenzyme A synthesis and lipid barrier function.
References
- Efficacy of Topical Hyaluronic Acid in Skin Care: A Systematic Review — Journal of Clinical and Aesthetic Dermatology (2019)
- Centella asiatica in cosmetology — International Journal of Molecular Sciences (2016)
- Anti-inflammatory and anti-melanogenic activities of glabridin — Journal of Agricultural and Food Chemistry (2003)
Dermatologist Perspective
Dermatologists often recommend the Klairs Supple Preparation Unscented Toner to hydrate patients with compromised barriers, rosacea, or contact dermatitis. Board-certified dermatologists note that because it lacks fragrance, essential oils, and denatured alcohol, it is one of the safest hydrating toners for reactive skin. The centella asiatica and licorice root combination provides anti-inflammatory benefits that dermatologists recognize as clinically meaningful, even at cosmetic concentrations. Dermatologists commonly suggest this toner as a buffer layer for patients using prescription retinoids or post-procedure skin to provide hydration without new irritants. Dermatologists also value that the formula avoids common sensitizers while delivering effective humectants — a balance many hydrating toners miss.
Where it fits in your routine.
After cleansing, pour a quarter-sized amount into your palms. Press it into slightly damp skin; do not rub or swipe. For the 7-skin method, apply 3-7 thin layers and let each partially absorb before the next. Follow with serum, treatment, and moisturizer. Use it morning and evening. For extra soothing on irritated or sunburned skin, soak a cotton pad and use as a compress for 5-10 minutes.
At about $22 for 180 mL, this toner is mid-range for K-beauty hydrating toners. The formulation is thoughtful and lacks filler ingredients or unnecessary additives, making the price-to-quality ratio favorable. A 30 mL travel size is also available for those who want to trial it first. Using one layer once daily makes the full-size bottle last 3-4 months, costing roughly $0.18-0.24 per day. Heavy 7-skin method users will finish it faster, increasing the cost. The pricing is fair for the reliable, irritant-free hydration and years of proven tolerability, especially given Klairs' track record of consistent quality.
This toner works for sensitive, reactive, or easily irritated skin that needs hydration without redness or stinging. It suits rosacea-prone skin, post-procedure recovery, and minimalist K-beauty routines focused on gentleness.
Those seeking a treatment toner with high concentrations of active ingredients like glycolic acid, niacinamide, or vitamin C should look elsewhere. If you want a rich, viscous toner that feels like a mini-moisturizer in one step, this lightweight formula may leave you wanting more.
Product details.
Lightweight, slightly viscous liquid — thinner than the original scented version. It feels like a watery essence and absorbs quickly without residue.
Completely unscented — no essential oils or fragrance additives of any kind.
Tall, slim, translucent plastic bottle with a screw-top cap. It is simple and functional but lacks a pump or dropper for controlled dispensing.
It hydrates and comforts skin on first application. It does not cause tingling, stinging, or an adjustment period. Even freshly compromised or post-procedure skin tolerates it well. Skin feels plumper within minutes.
Use twice daily on the face for 3-4 months, or less if you use the 7-skin layering method regularly.
12 months
All Year
The backstory.
The original Klairs Supple Preparation Toner was already a K-beauty cult favorite, but customers with extreme sensitivity kept requesting a version without essential oils. Klairs listened, reformulating the toner in 2018 to strip out every potential irritant while keeping the hydrating backbone intact — and the unscented version quickly surpassed the original in popularity.
About Klairs
Established Brand (5–20 years)Klairs launched in South Korea in 2010 with a 'simple but enough' philosophy. The brand is PETA-certified cruelty-free and Vegan Society approved. It has a large global following because it makes gentle, fragrance-free formulations for sensitive skin. Worldwide sales for the Supple Preparation Toner line exceed 9 million units.
Common myths.
The unscented version has fewer ingredients, so it is less effective than the original.
The core hydrating and soothing actives — sodium hyaluronate, centella, licorice root, panthenol, and beta-glucan — are the same in both versions. Removing essential oils eliminates potential irritants but keeps efficacy.
If you use a hydrating serum, you do not need toners.
This toner preps the skin: it rebalances skin pH after cleansing and creates a hydration base so subsequent products absorb better. It is not redundant with a serum — it is foundational to the routine.
FAQ.
Is Klairs Supple Preparation Unscented Toner good for acne-prone skin?
Yes — this toner has no comedogenic ingredients, is fragrance-free, and uses centella asiatica and licorice root extract to calm acne-related inflammation. Its lightweight formula does not clog pores or add oil, so it works as a safe hydration step for acne-prone routines.
What is the difference between Klairs Supple Preparation Toner and the Unscented version?
The unscented version removes all essential oils from the original formula, such as lavender oil and ylang-ylang oil, which are known potential sensitizers. The core hydrating and soothing actives are the same. This makes the unscented version slightly thinner.
Can I use Klairs Unscented Toner with retinol?
This toner uses centella, panthenol, and hyaluronic acid to buffer retinol irritation and provides the hydration layer retinol-treated skin needs. Apply it before your retinol to create a soothing moisture cushion.
Is Klairs Unscented Toner fungal acne safe?
This toner contains caprylic/capric triglyceride, which some fungal acne resources flag for Malassezia-sensitive skin. However, many fungal acne users report no issues. Patch test first if you have active fungal acne.
How do I use Klairs Toner for the 7-skin method?
Pour a small amount into your palms and press into damp skin. Repeat 3-7 times, letting each layer partially absorb before the next. This toner's lightweight, non-sticky formula works well for multi-layering without pilling or heaviness.
Is Klairs Supple Preparation Unscented Toner pregnancy safe?
Yes — this toner lacks retinoids, salicylic acid, or other pregnancy-concerning ingredients. The gentle formula of hyaluronic acid, centella, and botanical extracts is safe for pregnancy and breastfeeding.
Does Klairs Unscented Toner have alcohol?
No — this toner is alcohol-free. It uses butylene glycol as a solvent instead of denatured alcohol, so it does not strip or dry skin. This works for very dry or compromised skin barriers.
Community
What the community says.
"Incredibly hydrating without heaviness"
"Perfect for sensitive and reactive skin"
"Works beautifully with the 7-skin method"
"Lightweight and absorbs quickly"
"No irritation or stinging on compromised skin"
"Thin consistency may not feel 'enough' for very dry skin"
"Packaging is basic for the price point"
"Can feel slightly sticky if over-layered"
"Some prefer the original scented version's thicker texture"
