How to use the ordinary lactic acid and hyaluronic acid together

  • About
  • Usage Details

Description

In your regimen

  • Prep
  • Step 2: Treat
  • Seal

Use after cleansing, before anhydrous serums, oils, suspensions or creams.

About

Lactic Acid 10% + HA is an alpha hydroxy acid solution that offers effective exfoliation targeted at the skin’s surface. It is supported with purified Tasmanian pepperberry extract, which has been shown to reduce irritation and sensitivity that can be associated with acid use. This water-based serum is ideal for dry skin types. This pH of this formula is approximately 3.8. Lactic Acid has a pKa of 3.8 and pKa is the most important aspect to consider in formulating with acids. pKa implies acid availability. When pKa is close to pH, there is an ideal balance between salt and acidity, maximizing effectiveness of the acid and reducing irritation

How to use

View Product Directions.

Product Directions

  • Apply once daily, ideally in the evening. 
  • The formula can be diluted with other products to reduce strength until skin develops tolerance. 
  • Do not use on sensitive, peeling, or compromised skin. 
  • Avoid the eye contour and contact with eyes. 
  • Contact of the product with the skin must be of limited frequency or duration. 
  • If irritation occurs, rinse off, cease use, and consult a physician. 
  • Use only as directed on unbroken skin. 
  • Patch testing prior to use is advised. 
  • Keep out of reach of children.
  • Sunburn Alert: This product contains an alpha hydroxy acid (AHA) that may increase your skin’s sensitivity to the sun and particularly the possibility of sunburn. 
  • Use a sunscreen, wear protective clothing, and limit sun exposure while using this product and for a week afterwards.

Always patch test before use.

View Customer disposal instructions.

When to use

Use in PM

Good for

12 months after opening.

Step 1: Prep 1

Cleanse the skin and prepare it to receive active ingredients.

Price reduced from 19.90 USD to 15.32 USD

Step 2: Treat 10

Address specific skin concerns using targeted formulas. Always check each product's Usage Details to ensure products are compatible in the same routine.

Price reduced from 11.70 USD to 9.01 USD

Price reduced from 13.50 USD to 10.39 USD

Price reduced from 30.90 USD to 23.79 USD

Price reduced from 8.00 USD to 6.16 USD

Price reduced from 5.90 USD to 4.54 USD

Targets

Signs of Congestion

Price reduced from 9.00 USD to 6.93 USD

Price reduced from 7.00 USD to 5.39 USD

Targets

Antioxidant support

Price reduced from 10.00 USD to 7.70 USD

Price reduced from 9.80 USD to 7.55 USD

Price reduced from 30.20 USD to 23.25 USD

Step 3: Seal 3

Lock in benefits and support the skin barrier.

Price reduced from 10.50 USD to 8.08 USD

Price reduced from 8.90 USD to 6.85 USD

Targets

Antioxidant support

Price reduced from 9.70 USD to 7.47 USD

Targets

Antioxidant support

The Ordinary posts ALL reviews, positive or negative :-)

What goes first hyaluronic acid or lactic acid?

You will also find that lactic acid comes in various products, from cleansers, toners, and serums. By applying lactic acid before hyaluronic acid, you are allowing the skin to reap the rewards of gentle exfoliation before restoring moisture back once you apply a serum enriched in HA.

What should you not pair with lactic acid?

AHAs and BHAs, such as glycolic, salicylic, and lactic acids should never be used with Vitamin C. Vitamin C is an acid, too, and is unstable, so the pH balance will be thrown off by layering these ingredients together and might as well be useless.