Shira
NutriBurst
Retinol
Power
Duo
–
Advanced
Anti-Aging
Treatment
40 ml
Shira
NutriBurst
Retinol
Power
Duo
–
Advanced
Anti-Aging
Treatment
40 ml
Shira NutriBurst Retinol Power Duo is a powerful, dermatologist-developed retinol treatment featuring a high-strength serum and a nourishing repair cream. The serum delivers stabilized retinol to smooth fine lines and boost collagen production, while the accompanying cream calms, hydrates, and reinforces the skin barrier—perfect for daily anti-aging routines.
Designed for mature and aging skin, this duo enhances skin texture, balance, and clarity. The serum targets wrinkles, uneven tone, and roughness, while the repair cream supplies essential moisture and soothing nutrients to combat dryness and irritation often associated with retinoid use.
- Smooths fine lines, wrinkles, and crow’s feet
- Accelerates cell turnover for brighter, smoother skin
- Hydrates and strengthens the skin barrier
- Helps reduce uneven tone and dullness
- Ideal for both morning (cream) and evening (serum) use
Key Benefits:
- Dual-phase system offers potent retinol rejuvenation and calming hydration
- Visible firmness, brightness, and texture improvement
- Provides advanced anti-aging results without excessive dryness
- Balances treatment and repair for optimal skin health
- Suitable for mature and early aging concerns
How to Use:
Morning: apply 1–2 pumps of the repair cream to cleansed skin, then follow with SPF.
Evening: cleanse, apply 2–3 drops of the retinol serum, allow absorption, and follow with the repair cream. Use retinol phase nightly or alternate nights, building up based on tolerance.
Key Ingredients:
Stabilized Retinol, Peptide Complex, Hyaluronic Acid, Ceramides, Niacinamide, Squalane, Vitamin E
Size:
40 ml (combined serum and cream)
Skin Types:
All skin types—particularly mature, aging, dry, or texture-concerned skin
Skin Concerns:
Wrinkles, fine lines, uneven tone, dullness, texture irregularities, dryness
Frequently Asked Questions (FAQ):
What makes the Retinol Power Duo different from single-product retinol?
This two-step system balances maximum retinol efficacy with protective hydration. The repair cream soothes and nourishes, reducing irritation and enabling consistent use.
Can beginners use retinol with this product?
Yes. Beginners should apply the serum every other night and always follow with the repair cream to build tolerance gradually.
Will this help with uneven skin tone and texture?
Absolutely. Consistent use promotes cellular turnover, which enhances smoothness and brightness over time.
Is it safe for sensitive skin?
Yes. The calming ingredients in the repair cream protect against common retinol effects like redness and dryness. Always patch test before introduction.
How long before visible results appear?
Noticeable improvements in texture and glow can appear in 4 weeks. Significant reduction in fine lines and firmness is typically seen in 8 to 12 weeks.
Estimate delivery times: 3-5 days International.
Use code 'WELCOME15' for discount 15% on your first order.
Free shipping and returns: On all orders over $150.
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Benefits

Custom Curated
Medical Grade
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Steps
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Skin Analysis
02
Consultation
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Custom Curation
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Estibox Academy
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Skin Analysis
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Consultation
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Custom Curation
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Estibox Academy
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Consultation
Custom curated professional & medical grade skincare for your at home regimine.

Shipped To You
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Dive In
Each product in your kit includes access to Esti Academy with product demos, group forums & girl gang support as much or as little as you need.
How
To
Enroll

Consultation
Custom curated professional & medical grade skincare for your at home regimine.

Shipped To You
Your custom curated EstiBox is shipped directly to your door. No fuss- No Pharmacy visit.

Dive In
Each product in your kit includes access to Esti Academy with product demos, group forums & girl gang support as much or as little as you need.






FAQ
What will be in my Estibox?
At Estibox we will curate a custom skin care subscription box for you based on your skin analysis. You can use your device camera for a free skin analysis, take our free skin quiz or meet virtually with a licensed esthetician or physician to treat your skin conditions conveniently from home.
Will I receive my Estibox every month?
You can choose the frequency of delivery at checkout. All professional and RX treatments will be determined during your consultation with your provider. We offer a variety of products and you can customize your delivery schedule and frequency according your personal treatment goals.
What is the difference between professional products and store brands?
Professional and prescription grade products are prescribed by licensed esthetician or physicians and are the highest quality and grade of cosmetics available for your skin care regimen. Many store brands can actually be the innapropriate products for your skin type and actually cause more damage than good for your skin. Seeking professional guidance for your skin care regimen is the always the best plan for the long-term health of your skin.