Loreal Professionnel Keratin Alpha Sleek Hair Mask Anti-Frizz & Volume Control
Experience professional smoothing care at home with Loreal Professionnel Keratin Alpha Sleek Hair Mask, an advanced nourishing treatment designed to deliver long-lasting smoothness, frizz control, and disciplined volume. Formulated with Keratin-Alpha shaper technology and amino chains, this professional mask works deep within the hair fiber to reshape and reinforce keratin while preserving hair integrity.
When used as part of the complete Keratin Alpha Sleek routine, it helps lock in up to 2 weeks of smooth, frizz-controlled hair*, leaving strands softer, shinier, and visibly more aligned.
*Instrumental tests after 4 applications of Shampoo + Smooth Transformer + Serum.
What Is Loreal Professionnel Keratin Alpha Sleek Hair Mask?
Keratin Alpha Sleek Hair Mask is a professional intensive treatment developed to deeply nourish while smoothing and controlling volume. Unlike standard conditioning masks that mainly coat the surface, this formula works at the Keratin Alpha level, targeting the internal protein structure responsible for hair shape, elasticity, and strength.
Its rich, sensorial texture envelops the fiber, delivering hydration and discipline without weighing hair down. The result is smoother, more manageable hair with natural movement and luminous shine.
Who Is It Recommended For?
This mask is suitable for all hair types, particularly:
- Frizz-prone or humidity-reactive hair
- Thick or voluminous hair that needs discipline
- Hair exposed to frequent heat styling
- Dull, rough or dehydrated strands
- Clients looking for professional smoothing maintenance at home
Because it is artificial colorant-free and alcohol-free, it respects the hair fiber and is compatible with regular use within a professional routine.
Key Benefits
- Long-lasting smoothness
- Frizz & volume control
- Reshapes and reinforces hair keratin
- Deep nourishment and hydration
- Instant visible shine
- Improves manageability and softness
With continued use as part of the full Keratin Alpha Sleek protocol, hair becomes progressively smoother, more disciplined, and easier to style.
The Science: How Keratin Alpha Technology Works
Hair is primarily composed of alpha-keratin, the structural protein located at the core of each strand. This internal protein arrangement determines whether hair appears straight, wavy, or curly. It also influences elasticity, resilience, and resistance to humidity.
The Keratin-Alpha shaper + amino chains technology helps:
- Support the internal keratin structure
- Improve fiber alignment
- Smooth the hair surface
- Reduce frizz formation
- Control excessive volume
By working beyond superficial conditioning, this mask contributes to a more lasting smoothing effect while maintaining fiber strength.
Texture & Sensory Experience
The mask features a rich, creamy, sensorial texture that:
- Glides easily through lengths
- Instantly detangles
- Leaves hair silky to the touch
- Provides a luminous, healthy-looking finish
Hair feels nourished yet light, smooth but still full of natural movement.
How to Use Loreal Professionnel Keratin Alpha Sleek Hair Mask
For instantly smoother hair:
- After washing with Keratin Alpha Sleek Professional Shampoo, apply evenly from mid-lengths to ends.
- Leave on for 5 minutes.
- Rinse thoroughly.
- In case of contact with eyes, rinse immediately and thoroughly.
For long-lasting smoothness:
- Use Keratin Alpha Sleek Smooth Transformer once a week.
- On other wash days, use this mask to maintain nourishment and control.
Consistency is key to maximizing smoothing performance and preserving results.
Recommended Professional Routine
For optimal results and up to 2 weeks of smoothness:
- Cleanse: Keratin Alpha Sleek Shampoo
- Treat (Weekly): Keratin Alpha Sleek Smooth Transformer
- Maintain: Keratin Alpha Sleek Hair Mask (alternate wash days)
- Finish: Keratin Alpha Sleek Serum
This structured routine ensures cumulative fiber transformation, improved shine, and long-term frizz management.
Counseling at Lyskin Love Your Skin
At Lyskin Love Your Skin, we believe that effective haircare begins with informed decisions. If you are unsure whether the Loreal Professionnel Keratin Alpha Sleek Hair Mask is suitable for your hair type or how to integrate it into your routine, we invite you to use the Q&A tab on this product page.
Our team is available to guide you toward a personalized smoothing routine tailored to your hair’s specific needs.



















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