What is the product best used for?

The serum targets fine lines, wrinkles, and enlarged pores to boost radiance and firmness. It is suitable for all skin types, including sensitive skin, when used as directed.

How should I apply this product?

Cleanse skin thoroughly prior to application. Apply morning and night, before your moisturizer. Avoid the eye area and rinse immediately if it contacts eyes. You may feel warmth as the formula goes on.

Is it safe for sensitive skin?

Yes, it is described as suitable for all skin types, including sensitive skin, but as with any new skincare product, test on a small area first and discontinue if irritation occurs.

What are the key ingredients and their benefits?

Active vitamin C (12.5%) provides antioxidant benefits to brighten and support skin; hyaluronic acid hydrates to help plump and smooth; Ascorbyl Glucoside is a stable vitamin C derivative that aids skin delivery.

How long before I see results?

Users may see results in about two weeks with continued use, with benefits including reduced lines and improved skin radiance and texture.

Kiehl's Powerful-Strength Line-Reducing Concentrate 50 mL

Kiehl’s Powerful-Strength Line-Reducing Concentrate 50 mL

$116.45

Shipping to the United Kingdom

Processing: 1–3 business days Delivery: 10–15 business days

Kiehl’s Powerful-Strength Line-Reducing Concentrate is a 50 mL vitamin C serum with 12.5% vitamin C and hyaluronic acid that targets fine lines, wrinkles, and pores for a brighter, firmer look.

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SKU: CH3605971536090 Category: Skin Care Brand: Kiehl's

The Powerful-Strength Line-Reducing Concentrate from Kiehl’s is a vitamin C serum designed to brighten skin while targeting fine lines, wrinkles, and enlarged pores. This 50 mL concentrate delivers 12.5% vitamin C with hyaluronic acid to help firm and visibly improve skin texture for all skin types, including sensitive skin.

Key benefits

Visibly reduces lines and wrinkles by delivering antioxidant vitamin C into the skin.
Supports skin firmness and radiance with hyaluronic acid for deeper hydration.
Helps minimize the appearance of pores for a smoother complexion.
Penetrates deeply to maximize effectiveness and maintain results for up to six days per application period.
Dermatologist-tested safety profile and suitability for all skin types.

Ingredients and how they matter

Dimethicone — provides a lightweight barrier that helps lock in moisture and gives skin a smooth feel.
Propylene Glycol and Glycerin — humectants that draw moisture to the skin for lasting hydration.
Ascorbic Acid (Vitamin C) — antioxidant that supports radiance and helps address signs of aging when used as part of a routine.
Ascorbyl Glucoside — a stable vitamin C derivative that helps deliver the benefits of vitamin C to the skin.
Hydrolyzed Hyaluronic Acid — small molecules that help hydrate and plump the skin for a refreshed appearance.
Aromatics such as Lemon Peel Oil and Orange Peel Oil — provide a fresh scent and contribute to the formula’s feel; note any irritation is uncommon but discontinue if redness or irritation occurs.

Usage and suitability

Follow the included product instructions for usage. To use, cleanse skin thoroughly prior to application. Apply morning and night, before your moisturizer. Avoid the eye area. In case of contact with eyes, rinse them immediately. You may experience a feeling of warmth as the formula is applied to skin. This product is suitable for all skin types, including sensitive skin, and is intended for regular facial use as part of a skincare routine.

Storage: keep in a cool, dry place and out of reach of children. If irritation occurs, discontinue use and consult a physician as needed.

The combination of vitamin C with hyaluronic acid is designed to help improve radiance and support firming over time, with results typically seen within two weeks of consistent use.

Note: Do not exceed the recommended usage and always patch test a small area prior to full-face application if you have sensitive or reactive skin.

Closing thought: this serum pairs well with a moisturizer and sunscreen to protect and hydrate your skin throughout the day.

Disclaimer: This product is not intended to diagnose, treat, cure, or prevent any disease. Always read and follow the product label. Consult a healthcare professional if you have any health concerns.