When it comes to exfoliation, many skincare enthusiasts seek effective yet gentle solutions, especially for sensitive skin. Enter lactic acid—a mild alpha hydroxy acid (AHA) known for its unique ability to exfoliate and hydrate simultaneously. As a gentler alternative to glycolic acid, lactic acid offers a perfect blend of exfoliating benefits and moisture retention, making it ideal for those looking to brighten their complexion without irritation.
In this article, we’ll delve into the benefits of lactic acid, how it works, and the best ways to incorporate it into your skincare routine.
What Is Lactic Acid?
Lactic acid is a naturally occurring AHA derived from milk or fermented vegetables. Unlike harsher acids, its larger molecular size makes it a milder exfoliator, allowing it to work on the skin’s surface without penetrating too deeply. This quality makes lactic acid suitable for sensitive skin, offering a gentle yet effective solution for common skin concerns such as dullness, dryness, and uneven texture.
Lactic acid also stands out for its dual-action properties—it exfoliates dead skin cells while boosting hydration, leaving the skin smooth, bright, and nourished.
How Does Lactic Acid Work?
Lactic acid works by breaking down the bonds between dead skin cells on the surface of your skin. This process encourages skin renewal, revealing a brighter and more even complexion.
Additionally, lactic acid has humectant properties, which means it attracts and retains moisture in the skin. By drawing water into the skin, it helps to hydrate and maintain the skin barrier, making it a standout ingredient for those with dry or sensitive skin.
Benefits of Lactic Acid
| Benefits | Description |
| Gentle Exfoliation for Sensitive Skin | One of the primary benefits of lactic acid is its mild exfoliating action. Unlike stronger acids like glycolic acid, lactic acid is less likely to cause redness or irritation, making it perfect for sensitive or reactive skin types. |
| Skin Brightening | Lactic acid promotes skin cell turnover, helping to fade dark spots, hyperpigmentation, and uneven skin tone. With regular use, it can enhance your skin’s natural glow and provide a smoother, brighter complexion. |
| Retains Moisture | Lactic acid doubles as a hydrating skincare ingredient. Its humectant properties ensure that the skin retains moisture, preventing dryness often associated with exfoliation. |
| Strengthens the Skin Barrier | By improving hydration and gently exfoliating, lactic acid helps strengthen the skin barrier. A healthy skin barrier protects against environmental stressors, reduces sensitivity, and keeps the skin balanced. |
| Reduces Fine Lines and Wrinkles | With its exfoliating and hydrating properties, lactic acid can soften the appearance of fine lines and wrinkles. It plumps the skin with hydration, giving it a smoother, more youthful appearance. |
How to Incorporate Lactic Acid Into Your Skincare Routine
1. Start Slowly
If you’re new to lactic acid, start with a product containing a lower concentration (around 5-10%). This will allow your skin to adjust gradually without over-exfoliation.
2. Use It at Night
Like other AHAs, lactic acid can make your skin more sensitive to sunlight. Incorporate it into your nighttime routine and always use sunscreen during the day.
3. Layer It Correctly
Apply lactic acid products after cleansing and before moisturizing. If you’re using a serum, apply it before thicker creams or oils to maximize absorption.
4. Pair With Hydrating Ingredients
Lactic acid works well with hydrating and soothing ingredients like hyaluronic acid and ceramides. These combinations enhance its moisturizing benefits and minimize the risk of irritation.
5. Avoid Overlapping Actives
To prevent over-exfoliation, avoid using lactic acid alongside other strong exfoliants like glycolic acid or salicylic acid on the same day. Alternate their use if you want to incorporate multiple actives into your routine.
Best Lactic Acid Products
| Products | Details | Shop Now |
| Lactic Acid Serums | Serums are lightweight and easily absorbed, making them an excellent choice for delivering lactic acid directly to the skin. Look for serums with additional hydrating ingredients for maximum benefit. |  Link: https://shop.shajgoj.com/product/the-ordinary-lactic-acid-10-ha |
| Lactic Acid Lotion | Lactic acid lotion exfoliates the skin by gently removing dead cells, improving texture, hydration, and radiance while helping to reduce dark spots and roughness. |  Link: https://groomlybd.com/product/dr-sheths-tea-tree-lactic-acid-body-lotion-200ml/?srsltid=AfmBOoomBFuBC1zhhczRks-i7QEJqIMweLT-WucfwHrisshIj6ssmJNq |
| Lactic Acid Toners | These provide a mild exfoliation that can be used more frequently. A lactic acid toner is perfect for prepping the skin and enhancing the absorption of subsequent products. |  Link: https://bdbudgetbeauty.com/product/orkare-buh-bye-imperfections-toner-120ml/ |
Who Should Use Lactic Acid?
Lactic acid is suitable for most skin types, but it’s especially beneficial for:
- Sensitive Skin: Its mild exfoliating action makes it less irritating than other AHAs.
- Dry Skin: Provides hydration and exfoliation without stripping the skin.
- Dull or Uneven Skin: Brightens and smooths the complexion.
- Aging Skin: Softens fine lines and enhances skin elasticity.
However, if you have extremely reactive skin or certain skin conditions like eczema, consult a dermatologist before introducing lactic acid into your routine.
Common Side Effects and How to Avoid Them
Although lactic acid is gentle, it can cause mild irritation if not used properly. Here’s how to avoid common side effects:
1. Redness or Sensitivity
If you experience redness, reduce the frequency of use and choose a lower concentration.
2. Dryness
Follow lactic acid with a hydrating serum or moisturizer to lock in moisture and support your skin barrier.
3. Increased Sun Sensitivity
Use sunscreen daily to protect your skin from UV damage, especially when using exfoliating acids.
Differences Between Lactic and Salicylic Acid
| Feature | Lactic Acid | Salicylic Acid |
| Purpose | Hydrates and gently exfoliates to improve texture and brightness | Deep cleanses pores and treats acne |
| Skin Penetration | Works on the skin’s surface | Penetrates deeper into the pores |
| Best for Skin Types | Dry, sensitive, or dull skin | Oily, acne-prone, or combination skin |
| Key Benefits | Improves hydration, reduces fine lines, and fades hyperpigmentation | Reduces blackheads, whiteheads, and acne while controlling oil |
| Frequency of Use | Suitable for frequent use in lower concentrations | Should be used sparingly to prevent irritation |
| Common Side Effects | Mild irritation or redness in sensitive skin | Dryness, peeling, or irritation if overused |
FAQs About Lactic Acid
| Questions Asked | Answers |
| Can lactic acid be used daily? | Start by using lactic acid 2-3 times a week. Once your skin builds tolerance, you can gradually increase the frequency to suit your needs. |
| Is lactic acid safe for sensitive skin? | Yes, lactic acid is one of the gentlest AHAs and is ideal for sensitive skin. Start with a lower concentration to minimize the risk of irritation. |
| Can lactic acid be combined with retinol? | It’s best not to use lactic acid and retinol simultaneously, as both are active ingredients that may cause irritation. Alternate their use on different nights. |
| Does lactic acid help with acne? | Yes, lactic acid’s exfoliating properties can help unclog pores and reduce acne. However, for severe acne, consider pairing it with other treatments like salicylic acid or consult a dermatologist. |
| Can lactic acid lighten dark spots? | Regular use of lactic acid promotes skin cell turnover, which can fade dark spots and hyperpigmentation over time. |
| What’s the difference between lactic acid and glycolic acid? | Lactic acid is milder and more hydrating than glycolic acid, making it better suited for sensitive skin. Glycolic acid, on the other hand, penetrates deeper and provides more intense exfoliation. |
Lactic acid is a skincare powerhouse that combines gentle exfoliation with hydrating benefits. Its ability to brighten, smooth, and hydrate makes it a must-have for those with sensitive or dry skin. By incorporating lactic acid into your routine thoughtfully and pairing it with complementary ingredients, you can achieve a radiant, glowing complexion without irritation.
Written by –
Nafia Khanom Tanha
