{"product_id":"lactic-acid-5-percent-ha-the-ordinary-usa","title":"Lactic Acid 5% + HA","description":"\u003cdiv class=\"product-description-us\"\u003e\n\u003cdiv\u003e\u003cstrong\u003eWhat does The Ordinary Lactic Acid 5% + HA do?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eThe Ordinary Lactic Acid 5% + HA is a professional-grade, entry-level chemical exfoliator designed to significantly improve skin radiance and surface texture while maintaining the highest level of skin comfort. In the family of Alpha Hydroxy Acids (AHAs), Lactic Acid is celebrated for its unique dual-action profile: it simultaneously provides effective resurfacing and intensive hydration. This mild 5% concentration is specifically engineered for those with sensitive skin or those who are entirely new to chemical exfoliation. It works by weakening the biological \"glue\" that binds dead skin cells to the stratum corneum, facilitating a more efficient and controlled desquamation process. By clearing away this surface debris, the serum reveals a measurably smoother, more luminous, and even-toned complexion underneath. To further support the skin barrier, the formula is fortified with a purified Tasmanian Pepperberry derivative, known for its rapid ability to soothe the inflammation and redness often associated with acid use. Additionally, the inclusion of a specialized Hyaluronic Acid complex ensures that the skin remains plump and hydrated throughout the treatment. This solution provides a gentle, science-backed route to revitalized skin, making it a fundamental clinical tool for maintaining a healthy US glow without the downtime of stronger peels. Available for fast US delivery at theordinaryusa.co.\u003c\/p\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eWhy The Ordinary Lactic Acid 5% + HA is a US Skincare Essential\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eIn the United States, consumers face a staggering diversity of regional environmental pressures that can lead to skin sensitivity and dehydration. For those living in the arid desert climates of the Southwest (Arizona, Nevada) or the freezing, low-humidity winters of the Northeast and Midwest, the skin's barrier is often under constant stress, making traditional high-strength acids feel too aggressive. Conversely, in major US metropolitan hubs like New York City, Chicago, and Philadelphia, the daily accumulation of urban particulate matter can cause the skin to look sallow, \"gray,\" and congested. The Ordinary Lactic Acid 5% + HA is a US essential because it provides a \"smart\" and cautious approach to resurfacing. As a larger molecular weight AHA, Lactic Acid penetrates the skin more slowly than Glycolic Acid, providing a buffered and controlled exfoliation that is ideal for the diverse and often reactive American complexion. Its inherent humectant properties are perfectly suited for the fast-paced American lifestyle, offering a clinical-grade \"glow-up\" that actively repairs the moisture barrier while refining the grain. Whether you are navigating a smog-heavy commute or the dry air of a transcontinental flight, this serum provides the resilient hydration and resurfacing infrastructure needed to keep your skin looking polished and protected in any regional environment.\u003c\/p\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eKey Benefits of The Ordinary Lactic Acid 5% + HA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGentle Surface Resurfacing:\u003c\/strong\u003e Effectively dissolves dead skin cell buildup to reveal a measurably smoother and brighter skin surface with minimal irritation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmediate Radiance Boost:\u003c\/strong\u003e Works to eliminate sallow dullness and lackluster skin tone for a vibrant, healthy-looking US glow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefines Skin Texture:\u003c\/strong\u003e Visibly smooths out minor \"bumpy\" texture and rough patches, promoting a more uniform and polished skin grain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Action Hydration:\u003c\/strong\u003e Lactic acid acts as a natural humectant, drawing moisture into the skin while it exfoliates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoothing Tasmanian Pepperberry:\u003c\/strong\u003e Infused with a botanical derivative clinically shown to reduce the neural signals of burning and irritation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrier Support with HA:\u003c\/strong\u003e Formulated with Hyaluronic Acid to ensure the skin remains comfortable and plumped during the resurfacing cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerfect Entry-Level AHA:\u003c\/strong\u003e An ideal 5% concentration for beginners or those with reactive skin who cannot tolerate stronger Glycolic acids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnifies Uneven Tone:\u003c\/strong\u003e Helps to balance the appearance of localized discoloration and minor post-inflammatory marks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Comedogenic \u0026amp; Oil-Free:\u003c\/strong\u003e A lightweight, aqueous formula that provides intensive results without clogging pores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimizes Routine Absorption:\u003c\/strong\u003e By clearing the path of dead skin cells, it allows subsequent serums and oils to penetrate more effectively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Versatility:\u003c\/strong\u003e A fundamental exfoliation layer that is safe for almost all US skin profiles, including the most delicate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSustainably \u0026amp; Ethically Produced:\u003c\/strong\u003e A 100% vegan and cruelty-free formula that meets the highest US clinical standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eKey Ingredients and The Science Behind Them\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eLactic Acid (5%)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eThe core science of this treatment is centered on \u003cstrong\u003eLactic Acid\u003c\/strong\u003e, an Alpha Hydroxy Acid (AHA) that is naturally found in the skin's own Natural Moisturizing Factors (NMF). In clinical dermatology, Lactic Acid is distinguished by its larger molecular weight compared to Glycolic Acid. This physical property ensures a more gradual penetration through the lipid bilayer of the stratum corneum, which significantly reduces the risk of acute inflammatory response. At a 5% concentration, it works through \u003cstrong\u003edesquamation\u003c\/strong\u003e, weakening the ionic bonds between skin cells to encourage turnover. Because Lactic Acid is chiral and contains a hydroxyl group, it has a high affinity for water molecules, making it one of the few exfoliating agents that actually increases skin hydration levels. Our formula is held at a pH of approximately 3.8, which is the pKa of Lactic Acid—the precise point of chemical equilibrium that ensures peak bio-availability and molecular stability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eTasmannia Lanceolata (Tasmanian Pepperberry)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eTo mitigate the stinging sensation that can occur even with mild acids, we have included \u003cstrong\u003eTasmanian Pepperberry\u003c\/strong\u003e. The science of this extract involves a unique molecule called polygodial, which has been clinically demonstrated to rapidly inhibit the TRPV1 receptors in the skin. These receptors are responsible for sensing the burning and itching signals triggered by pH shifts. By calming these neural pathways, the Pepperberry derivative ensures that the 5% concentration remains exceptionally comfortable for regular clinical use on the US complexion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eSodium Hyaluronate (Hyaluronic Acid)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eThe formula is further enhanced with \u003cstrong\u003eSodium Hyaluronate\u003c\/strong\u003e, a salt form of Hyaluronic Acid that possesses a lower molecular weight for deeper penetration. The science of HA involves its incredible ability to bind up to 1,000 times its weight in water. By creating a moisture reservoir within the surface layers, it buffers the skin against the potentially drying effects of the acid, leaving the face feeling hydrated and supple rather than stripped.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eSpecifications Table\u003c\/strong\u003e\u003c\/div\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eLactic Acid 5% + HA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eThe Ordinary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003eWater-Based Aqueous Serum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Active\u003c\/td\u003e\n\u003ctd\u003e5% Lactic Acid (AHA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Level\u003c\/td\u003e\n\u003ctd\u003eApproximately 3.6 – 3.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTargets\u003c\/td\u003e\n\u003ctd\u003eDullness, Fine Lines, Texture, Hydration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuited To\u003c\/td\u003e\n\u003ctd\u003eAll Skin Types (Ideal for Sensitive and Beginners)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003e30mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVegan \/ Cruelty-Free\u003c\/td\u003e\n\u003ctd\u003eYes \/ Yes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUS Availability\u003c\/td\u003e\n\u003ctd\u003eOfficial US Store — theordinaryusa.co\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eHow to Use The Ordinary Lactic Acid 5% + HA\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eTo achieve the best clinical results while maintaining skin comfort, follow these professional application protocols:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Start with a clean, dry face. We recommend a gentle cleanser like the Glucoside Foaming Cleanser.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Dry Skin Rule:\u003c\/strong\u003e Do not apply to wet or damp skin. Water can increase the penetration speed of acids, which may lead to unnecessary irritation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiming:\u003c\/strong\u003e Use ideally in the \u003cstrong\u003eevening (PM)\u003c\/strong\u003e routine. We recommend starting with 2-3 times per week and gradually increasing to daily use as your skin builds tolerance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Dispense 2-3 drops into the palms of your hands and press gently onto the entire face and neck. Avoid the immediate eye area and eyelids.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Being a water-based serum, it should be applied after cleansing and \u003cem\u003ebefore\u003c\/em\u003e heavier serums, oils, or moisturizers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSun Alert:\u003c\/strong\u003e This product contains an AHA that may increase your skin's sensitivity to the sun. Always finish your morning routine with a broad-spectrum high-SPF US sunscreen and limit sun exposure for one week after use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRinse:\u003c\/strong\u003e This is a leave-on treatment. Do not rinse off after application.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Patch test before first use. Apply only to unbroken skin as directed.\u003c\/p\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eWho is it for?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eThe Ordinary Lactic Acid 5% + HA is designed for anyone seeking a more polished and hydrated complexion:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAHA Beginners:\u003c\/strong\u003e Individuals who have never used chemical exfoliants before and want a gentle, \"safe\" entry point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitive Skin Profiles:\u003c\/strong\u003e Those who find Glycolic Acid or Salicylic Acid too irritating for their barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry and Dehydrated Skin:\u003c\/strong\u003e US consumers who need resurfacing but struggle with moisture loss—this formula hydrates while it works.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLackluster Complexions:\u003c\/strong\u003e Anyone seeking to eliminate sallow undertones and restore a visible, healthy US glow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTextural Concern Profiles:\u003c\/strong\u003e Individuals struggling with minor \"bumpy\" texture or rough skin grain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll US Skin Profiles:\u003c\/strong\u003e A non-comedogenic, pH-balanced formula that is safe and effective for everything from oily to very dry skin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does The Ordinary Lactic Acid 5% + HA do?\u003c\/summary\u003e\n\u003cp\u003eIt provides a gentle, multi-depth resurfacing and hydration treatment by utilizing a 5% concentration of Lactic Acid to dissolve dead skin cells, targeting dullness and texture for a brighter, smoother complexion.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs 5% Lactic Acid enough to see results?\u003c\/summary\u003e\n\u003cp\u003eYes. While it is a \"gentle\" concentration, consistent daily use at 5% is highly effective at maintaining skin radiance and refining the grain without the barrier stress of higher concentrations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is Lactic Acid different from Glycolic Acid?\u003c\/summary\u003e\n\u003cp\u003eLactic Acid has a larger molecular size, meaning it penetrates the skin more slowly and gently. It also has natural humectant properties, making it much better suited for sensitive or dry US skin than Glycolic Acid.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this with Retinol or Vitamin C?\u003c\/summary\u003e\n\u003cp\u003eWe recommend separating these treatments. Use Lactic Acid in the evening and Vitamin C in the morning. Avoid using Lactic Acid and Retinol on the same night to prevent over-exfoliation and irritation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill it make my skin purge?\u003c\/summary\u003e\n\u003cp\u003eAs with any active that increases cellular turnover, a minor \"purging\" period is possible but less likely with this gentle 5% concentration. If it occurs, it typically resolves within 2 weeks.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to wash it off?\u003c\/summary\u003e\n\u003cp\u003eNo. It is a leave-on serum designed to work overnight. You should follow it with your regular moisturizer to lock in the actives.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use it if I have sensitive skin?\u003c\/summary\u003e\n\u003cp\u003eYes, this is specifically formulated for sensitive profiles and includes Tasmanian Pepperberry to reduce the irritation associated with acid use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs it safe for use during pregnancy?\u003c\/summary\u003e\n\u003cp\u003eLactic Acid at 5% is generally considered safe during pregnancy. However, because skin sensitivity can change, we always suggest consulting your US physician before starting a new treatment.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long will a 30mL bottle typically last?\u003c\/summary\u003e\n\u003cp\u003eWith daily use (2-3 drops), a bottle typically lasts between 2 and 3 months, providing exceptional clinical value.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes it have a scent?\u003c\/summary\u003e\n\u003cp\u003eIt is 100% fragrance-free. Any clean clinical aroma is the natural result of the Lactic Acid and the botanical extracts within the formula.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill it help with my large pores?\u003c\/summary\u003e\n\u003cp\u003eBy clearing surface buildup that can stretch the pore openings, it helps the skin grain look more refined and the pores appear less prominent.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy is it a water-based serum?\u003c\/summary\u003e\n\u003cp\u003eThe aqueous format ensures that the Lactic Acid can interact effectively with the skin surface without being blocked by oils or heavy silicones.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use it on my body?\u003c\/summary\u003e\n\u003cp\u003eYes! It is excellent for smoothing rough skin on the elbows, knees, or the back of the arms (KP).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere should I store the bottle?\u003c\/summary\u003e\n\u003cp\u003eStore in a cool, dry place away from direct sunlight. It does not require refrigeration to remain potent and stable.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I do if I get a tingling sensation?\u003c\/summary\u003e\n\u003cp\u003eA mild tingling is normal as the acid works. If you experience intense burning or see persistent redness, rinse off immediately and focus on barrier repair.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eComplete Your Skincare Routine...\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eBuild a high-performance ritual for radiance and smoothness at theordinaryusa.co with these complementary products:\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e👉 \u003ca href=\"https:\/\/theordinaryusa.co\/products\/glucoside-foaming-cleanser\"\u003eGlucoside Foaming Cleanser\u003c\/a\u003e — The perfect gentle start to your exfoliating routine.\u003c\/li\u003e\n    \u003cli\u003e👉 \u003ca href=\"https:\/\/theordinaryusa.co\/products\/hyaluronic-acid-2-b5\"\u003eHyaluronic Acid 2% + B5\u003c\/a\u003e — Layer after the acid to deeply rehydrate the newly resurfaced skin.\u003c\/li\u003e\n    \u003cli\u003e👉 \u003ca href=\"https:\/\/theordinaryusa.co\/products\/soothing-barrier-support-serum\"\u003eSoothing \u0026amp; Barrier Support Serum\u003c\/a\u003e — The \"Pink Serum\" for the ultimate post-exfoliation recovery.\u003c\/li\u003e\n    \u003cli\u003e👉 \u003ca href=\"https:\/\/theordinaryusa.co\/products\/natural-moisturizing-factors-ha\"\u003eNatural Moisturizing Factors + HA\u003c\/a\u003e — Finish your routine with this skin-identical moisturizer seal.\u003c\/li\u003e\n    \u003cli\u003e👉 \u003ca href=\"https:\/\/theordinaryusa.co\/products\/multi-peptide-lash-brow-serum\"\u003eMulti-Peptide Lash and Brow Serum\u003c\/a\u003e — Complete your high-performance clinical beauty regimen.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv\u003e\u003cstrong\u003eWhy Buy From theordinaryusa.co?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n    \u003cli\u003e🌍 \u003cstrong\u003eOfficial US store\u003c\/strong\u003e — serving all 50 states\u003c\/li\u003e\n    \u003cli\u003e🚚 \u003cstrong\u003eFast, tracked delivery\u003c\/strong\u003e across the United States\u003c\/li\u003e\n    \u003cli\u003e✅ \u003cstrong\u003e100% authentic\u003c\/strong\u003e The Ordinary products\u003c\/li\u003e\n    \u003cli\u003e🔒 \u003cstrong\u003eSecure checkout — SSL encrypted\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003e💬 \u003cstrong\u003eDedicated customer support\u003c\/strong\u003e for American customers\u003c\/li\u003e\n    \u003cli\u003e🌱 \u003cstrong\u003eVegan \u0026amp; cruelty-free products only\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"The Ordinary","offers":[{"title":"30ml","offer_id":45198092435535,"sku":"SKU_1742499541559_936","price":7.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/3355\/2975\/files\/rdn-lactic-acid-5pct-ha-30ml.webp?v=1778411534","url":"https:\/\/theordinaryusa.co\/en-gb\/products\/lactic-acid-5-percent-ha-the-ordinary-usa","provider":"The Ordinary","version":"1.0","type":"link"}