ISNTREE Hyper Retinol EX 1.0 Serum 20ml | 5 Peptides | 5 Cermaides | Helps Reduce Fine Lines

  • Revitalize and Restore, This well-aging serum helps restore the skin’s youthful radiance by increasing its firmness with minimal dryness and no irritation.
  • High-performance, gentle retinol serum. Helps improve the complexion without compromising the skin’s sensitivity.
  • Key ingredients: Retinol EX 1%, Provides intensive well-aging benefits by improving the appearance of the fine lines and wrinkles. (0.1% Retinol, 0.3% Retinyl palmitate, 0.6% Bakuchiol)
  • Texture: A lightwright milky texture in a bright yellow color. (The products texture color may naturally change over time, which is normal and doesn’t affect its quality.
  • How to use: Take 2-3 drops on the palm of your hands and gently pat it on your skin for maximum absorption. * Apply the serum at night, after cleansing on a dry skin, before your moisturizer. Apply sunscreen throughout the day*

$14.72

Discovering the Secret to Radiant Skin Without the Irritation

Let me be honest—my relationship with retinol has been complicated. For years, I’ve been chasing that promised glow, only to end up with angry, flaking skin that sent me running back to my gentle moisturizers. That was until I discovered Isntree’s approach to retinol, and it completely changed my skincare game. If you’ve been curious about incorporating this powerhouse ingredient into your routine but have been hesitant because of sensitivity concerns, you’re in the right place. This guide represents my personal experience and extensive research into what makes Isntree Retinol products truly stand out in the oversaturated skincare market.

The Retinol Revolution: Why Isntree Caught My Attention

The first time I heard about Isntree was through a Korean beauty forum where sensitive-skinned users were raving about finally being able to use retinol without the dreaded “retinol uglies” (that uncomfortable period of peeling and irritation). As someone who had shelved multiple high-end retinol products after just a few uses, I was intrigued but skeptical.

What made me take the plunge was Isntree’s philosophy: effective ingredients delivered in formulations that respect the skin barrier. In a world where skincare often feels like choosing between gentleness and results, this promised the best of both worlds.

Understanding Retinol: The Gold Standard in Anti-Aging

Before diving into Isntree specifically, let’s refresh ourselves on why retinol has earned its reputation as skincare royalty.

Retinol, a vitamin A derivative, works by accelerating cell turnover and stimulating collagen production. This process helps to:

  • Diminish fine lines and wrinkles
  • Improve skin texture and tone
  • Reduce hyperpigmentation
  • Clear and prevent acne
  • Minimize pore appearance

The challenge has always been harnessing these benefits without triggering irritation, redness, and dryness—especially for those of us with reactive skin types.

What Makes Isntree Retinol Different?

After trying numerous retinol products over the years, I’ve come to appreciate what sets Isntree apart. Their formulations aren’t just about including retinol; they’re about creating a balanced ecosystem of ingredients that work synergistically.

Gentle Yet Effective Concentrations

One of the first things I noticed about Isntree’s approach is their transparency about concentrations. Their flagship product, the Isntree TW-Real Eye Cream With Retinol 1.0, contains 1% retinol—potent enough to deliver results but formulated in a way that minimizes irritation.

What’s fascinating is how they’ve managed to make this concentration work for sensitive skin. The secret lies in their delivery system and complementary ingredients. Rather than using pure retinol (which can be highly irritating), they use a stabilized form encapsulated in liposomes that release gradually into the skin, reducing the initial shock that often leads to irritation.

A Support System of Soothing Ingredients

When I first examined the ingredient list, I was impressed by the thoughtful formulation. Alongside retinol, Isntree includes:

  • Niacinamide to strengthen the skin barrier and reduce potential irritation
  • Hyaluronic acid to maintain hydration (crucial when using retinol, which can be drying)
  • Ceramides to support barrier function
  • Panthenol (Vitamin B5) for its soothing and healing properties
  • Adenosine, which works synergistically with retinol for enhanced anti-aging effects

This isn’t just a retinol product; it’s a comprehensive skin treatment that addresses multiple concerns simultaneously while protecting against the common side effects of retinol use.

My Personal Experience: The First Three Months

I believe in giving skincare products adequate time to show their potential, so I committed to a three-month journey with Isntree Retinol. Here’s how it unfolded:

Week 1-2: The Introduction Phase

Unlike previous retinol experiences where I witnessed immediate redness and flaking, my introduction to Isntree was remarkably gentle. I started using it twice a week, applying a pea-sized amount to my entire face after cleansing and toning in the evening.

The texture was luxurious—lightweight yet nourishing. It absorbed quickly without any greasy residue, which was a pleasant surprise for a product with such nourishing ingredients.

During these first two weeks, I monitored my skin closely for any signs of irritation. There was some very mild tightness the morning after my first application, but no visible redness or peeling. By the second week, even that mild tightness had subsided.

Weeks 3-6: The Adjustment Period

As my skin adjusted, I gradually increased frequency to every other night. This is when I began noticing subtle improvements—my complexion appeared more even, and the fine lines around my eyes seemed slightly less pronounced.

What really impressed me during this phase was how my skin continued to feel comfortable. With previous retinol products, this increase in frequency would have triggered visible irritation. Instead, my skin seemed to be thriving.

By week six, I noticed a significant improvement in texture. The small bumps on my forehead had diminished, and my skin felt smoother overall. My makeup was applying more evenly, and I found myself using less concealer around my nose where I typically have redness.

Months 2-3: The Transformation

The two-month mark is where Isntree Retinol truly proved its worth in my skincare routine. The improvements were no longer subtle but noticeable even to others. Comments like “Your skin looks amazing! What are you doing differently?” became common.

Specifically, I observed:

  • A significant reduction in the fine lines around my eyes and forehead
  • More even skin tone with faded sun spots that had bothered me for years
  • Smaller-looking pores, especially across my nose and cheeks
  • A persistent glow that didn’t require highlighter to achieve
  • Less frequent breakouts, and when they did occur, they resolved more quickly

By the three-month mark, I had confidently increased to using Isntree Retinol every night, still with no irritation. My skin had never looked better, and I was officially converted.

The Complete Guide to Using Isntree Retinol Effectively

Based on my experience and extensive research, here’s how to get the most out of Isntree Retinol products:

Finding the Right Product for Your Needs

Isntree offers several retinol formulations, each designed for specific concerns:

  1. Isntree TW-Real Eye Cream With Retinol 1.0: Ideal for targeting crow’s feet and under-eye concerns
  2. Isntree Retinol C Cream: Combines retinol with vitamin C for enhanced brightening effects
  3. Isntree Clear Skin Retinol Toner: Perfect for acne-prone skin seeking gentle treatment

When selecting your product, consider your primary skin concerns and retinol experience. If you’re new to retinol, you might start with their more gentle formulations before progressing to higher concentrations.

How to Incorporate Isntree Retinol Into Your Routine

The key to success with any retinol product is proper integration into your existing routine. Here’s my tried-and-true approach:

Evening Routine (when using retinol):

  1. Cleanse thoroughly but gently to remove all makeup and pollutants
  2. Apply toner if part of your routine (I recommend avoiding exfoliating toners on retinol nights)
  3. Wait 15-20 minutes for your skin to be completely dry (applying retinol to damp skin can increase irritation)
  4. Apply a pea-sized amount of Isntree Retinol, distributing evenly across the face, avoiding the immediate eye area
  5. Wait 10-15 minutes before applying other products
  6. Follow with a nourishing moisturizer to seal in the retinol and provide additional hydration
  7. Consider facial oil if your skin tends to be dry (I add 2-3 drops of squalane oil on top of my moisturizer during winter months)

Morning After Routine:

  1. Gentle cleanse to remove nighttime products
  2. Hydrating toner or essence to replenish moisture
  3. Antioxidant serum (vitamin C works wonderfully with overnight retinol)
  4. Moisturizer appropriate for your skin type
  5. Sunscreen with SPF 30 or higher (non-negotiable when using retinol!)

Frequency and Building Tolerance

One of the biggest mistakes I see is people using retinol too frequently too soon. Even with gentle formulations like Isntree, a gradual approach yields the best results:

  • Beginners: Start with once a week for two weeks, then twice a week for two weeks
  • Intermediate: Every other night for 2-4 weeks
  • Advanced: Every night, or as tolerated by your skin

Listen to your skin throughout this process. If you notice increased sensitivity, redness, or flaking, reduce frequency until your skin adjusts.

Special Considerations for Different Skin Types

Sensitive Skin

If you’ve struggled with retinols in the past, Isntree is likely one of the best options for you. Still, I recommend:

  • Using the “sandwich method” (moisturizer → retinol → moisturizer) when first starting
  • Avoiding use on nights when you’ve used physical exfoliation
  • Having a soothing mask on hand for any potential irritation

Acne-Prone Skin

Retinol can be transformative for acne, but requires patience:

  • Expect a potential “purging” period as congestion surfaces more quickly
  • Combine with non-comedogenic moisturizers
  • Avoid layering with benzoyl peroxide, which can deactivate retinol

Mature Skin

For those primarily concerned with anti-aging:

  • Consider using retinol more frequently once tolerance is established
  • Layer with peptide serums for enhanced collagen support
  • Don’t neglect the neck and décolletage areas (using a slightly smaller amount)

Honest Answers to Your Burning Questions

Throughout my journey documenting my experience with Isntree Retinol, I’ve received countless questions. Here are the most common ones, answered candidly:

Is Isntree Retinol truly suitable for sensitive skin?

In my experience, yes—with caveats. It’s one of the gentlest retinol formulations I’ve encountered, but retinol itself is an active ingredient that can cause irritation. What makes Isntree special is their buffering system and complementary ingredients that minimize this risk. Still, if you have extremely reactive skin, start with their lowest concentration and proceed cautiously.

How does Isntree Retinol compare to prescription retinoids?

Prescription retinoids like tretinoin are undeniably more potent and have more extensive clinical research behind them. However, they also come with a significantly higher risk of irritation and require medical supervision.

Isntree Retinol offers a middle ground—more effective than many over-the-counter options but gentler than prescriptions. For many people (myself included), this balance is ideal for long-term use and compliance.

Can Isntree Retinol be used around the eyes?

Their specific eye cream formulation is designed for this delicate area. For their other retinol products, I recommend caution—apply only to the orbital bone, not on the eyelids or too close to the lash line. I’ve found that applying my regular eye cream first creates a buffer that prevents irritation when the retinol naturally migrates slightly.

Does Isntree Retinol help with acne scars?

Based on my experience and feedback from others, yes—but with realistic expectations. For raised or indented scars (atrophic or hypertrophic), retinol will show modest improvement over time. For post-inflammatory hyperpigmentation (the red or brown marks left after acne), Isntree Retinol has been remarkably effective in my experience, especially when used consistently for 3+ months.

Is Isntree Retinol safe during pregnancy or breastfeeding?

No retinol products are considered safe during pregnancy or breastfeeding. While Isntree uses gentler formulations, the active ingredient is still a vitamin A derivative, which is contraindicated during these periods. I recommend consulting with your healthcare provider and considering alternative ingredients like bakuchiol or azelaic acid during pregnancy and breastfeeding.

Can I combine Isntree Retinol with vitamin C?

This depends on your skin’s tolerance and the specific vitamin C formulation. Generally, I recommend using vitamin C in the morning and retinol in the evening to avoid potential irritation and because vitamin C provides antioxidant protection during the day when you need it most.

That said, Isntree’s Retinol C Cream is specifically formulated to combine these ingredients safely. For other products, if you have resilient skin, you might experiment with layering after building tolerance to each individually.

How long will it take to see results?

Based on my experience and conversations with other users:

  • Improved texture and glow: 2-4 weeks
  • Reduction in minor fine lines: 4-8 weeks
  • Significant improvement in hyperpigmentation: 8-12 weeks
  • Deeper wrinkle reduction: 3-6 months
  • Maximum benefits: 6-12 months of consistent use

Remember that skincare is a marathon, not a sprint. Consistent use yields the most impressive results.

The Value Proposition: Is Isntree Retinol Worth the Cost?

Let’s talk about the investment. Isntree Retinol products typically range from $25-45 depending on the specific formulation and where you purchase them. While not the least expensive options on the market, they’re significantly more affordable than many high-end retinol products that can run $75-150+.

In my cost-benefit analysis, Isntree offers exceptional value for several reasons:

  1. Efficacy without the side effects: Paying less for a product you can’t actually use due to irritation isn’t a bargain.
  2. Thoughtful formulations: You’re not just paying for retinol but for an entire treatment system with complementary ingredients.
  3. Product longevity: A little goes a long way—my first tube lasted nearly 6 months with regular use.
  4. Reduced need for multiple products: As my skin improved, I found myself needing fewer concealers, treatments for breakouts, and other corrective products.

When considering the cost per use and the results delivered, I’ve found Isntree to be one of the most worthwhile investments in my skincare routine.

Where to Buy Authentic Isntree Retinol Products

One challenge with K-beauty products like Isntree is ensuring you’re purchasing authentic items. I’ve had success with:

  • YesStyle
  • Stylevana
  • Olive Young
  • Jolse
  • Select specialty K-beauty stores

I recommend avoiding unverified Amazon sellers or extremely discounted offers that seem too good to be true—they often are. Counterfeit skincare is unfortunately common and can contain harmful ingredients.

What Real Users Are Saying: Beyond My Experience

While I’ve shared my personal journey, I’ve also compiled feedback from friends, family members, and online communities who have tried Isntree Retinol products:

“After trying four different retinol products that left my skin angry and flaking, Isntree is the first one I can actually use consistently. Three months in and my stubborn forehead lines are noticeably softened.” —Emma, 42, sensitive skin

“As someone with cystic acne, I was scared to try any retinol. Isntree not only didn’t make me break out worse, it’s actually helped clear my skin better than benzoyl peroxide ever did—without the dryness.” —Michael, 28, acne-prone skin

“I’m 58 and have used prescription tretinoin for years. Switched to Isntree during a particularly sensitive phase and was shocked that I got comparable results without the irritation. I haven’t gone back.” —Linda, 58, mature skin

The consensus among users seems to mirror my experience: exceptional results with minimal irritation, especially for those who have struggled with traditional retinol products.

My Final Verdict After A Year with Isntree Retinol

Having now used Isntree Retinol products for over a year, I can confidently say they’ve earned a permanent place in my skincare routine. The initial results I observed have not only persisted but improved over time, with continued refinement in texture and tone.

What impresses me most is the consistent performance without adaptation—my skin hasn’t “gotten used to” the product, reducing its effectiveness as sometimes happens with actives. Instead, it continues to respond positively, with the added benefit of improved resilience overall.

If I could go back and give advice to my retinol-hesitant self, it would be simple: start with Isntree sooner. The months I spent cycling through irritating products or avoiding retinol altogether were unnecessary detours in my skincare journey.

For anyone considering making the leap into retinol or looking to switch from a more irritating formulation, Isntree represents the ideal balance of gentle formulation and proven results that makes retinol accessible to virtually all skin types.

The transformation in my skin has been more than physical—it’s given me confidence and simplified my routine. And isn’t that the ultimate goal of great skincare? Not just to look better, but to worry less and live more comfortably in your skin.

Have you tried Isntree Retinol products? I’d love to hear about your experience and answer any questions you might have based on my journey. After all, skincare is deeply personal, and sharing our experiences helps all of us make more informed choices.

More Interesting Posts

Leave a Reply

Your email address will not be published. Required fields are marked *