The Concentrate Serum Duo $665 Value

What it is: A full- and travel-size duo of the potent reparative barrier serum to strengthen, stabilize and visibly soothe skin against daily irritants and in times of extreme stress.

What it does: This antioxidant-rich serum helps defend skin against pollution, microdust and other free-radical damage that can lead to signs of premature aging. Concentrated Miracle Broth™ ensures an ideal state of rest and repair while reducing the appearance of visible signs of irritation. Skin appears stronger, visibly soothed and renewed.

Key ingredients:

- Concentrated Miracle Broth: the brand's powerhouse elixir helps calm the look of redness and other signs of irritation while energizing renewal

- Lime Tea Concentrate: a proprietary antioxidant helps neutralize free radicals to help protect skin from environmental stress and pollution

- The Stabilizing Ferment: a proprietary ferment is designed to help strengthen fragile, irritated skin, bringing it back to its center of power

Set includes:

- Full-size The Concentrate Serum (1 oz.)

- Travel-size The Concentrate Serum (0.5 oz.)

Research results:

In a consumer test on 107 women, after using product for 14 days:

- 92% said their skin felt stronger and more resilient after only 2 weeks

After using the product for 4 weeks:

- 92% of women said their skin felt less sensitive

In a clinical test on 22 women, after using product twice daily for 3 weeks prior to a professional-strength skin peel:

- Used product for 3 weeks before a peel and it helped improve barrier recovery within 2 hours of treatment

In a clinical test on 30 women. Product compared to a standard moisturizer, both used twice daily for 3 days following a professional laser treatment:

- Product provides better skin barrier recovery after laser treatment in 3 days

In a clinical test on 23 women, after using product for 14 days:

- Product helps improve skin barrier strength in 14 days

How to use: With the wand, smooth a small amount of the serum onto fingertips. Gently press and massage onto skin at least twice daily or as needed within your skin care routine. Follow with your favorite La Mer face cream.

Pro tips: Use together with the Treatment Lotion (sold separately) for a stronger barrier in just 8 hours.*

*Compared to Treatment Lotion alone, clinical testing on 32 women after using Treatment Lotion followed by The Concentrate once.