Just Caffeine 5% Eye Contour Serum
Just Caffeine 5% Eye Contour Serum
Product Description
Product overview
A minimalist, high-concentration eye contour serum with 5% pure caffeine and green tea extract that targets puffiness, dark circles, and tired-looking skin around the eyes. Only 8 clean ingredients for a straightforward approach to brighter, more refreshed eyes.
High-Dose Caffeine (5%)
An extremely high concentration of caffeine to visibly depuff the eye area, improve microcirculation, and reduce the appearance of dark circles.
Texture & feel
SENSORYHigh-Dose Caffeine (5%)
An extremely high concentration of caffeine to visibly depuff the eye area, improve microcirculation, and reduce the appearance of dark circles.
Green Tea Extract
Rich in polyphenols and catechins, green tea extract soothes the delicate eye area and provides powerful antioxidant protection against environmental stressors.
Minimalist Formula
Just 8 carefully chosen ingredients with no unnecessary fillers. Less risk of irritation and ideal for sensitive skin around the eyes.
Antioxidant Defense
Caffeine combined with green tea creates a dual antioxidant shield that helps protect delicate eye skin from UV damage and pollution.
Safety & compatibility
SAFENo retinoids, salicylic acid, or hydroquinone present. However, the brand states their products are not tested on pregnant or breastfeeding women. Consult your doctor before use.
Contains no fermented ingredients, problematic fatty acids, esters, or polysorbates. Verified safe for fungal acne-prone skin by multiple ingredient databases.
Oil-free and silicone-free formula with zero known pore-clogging ingredients. Extremely unlikely to cause breakouts even on acne-prone skin.
Free from fragrances, essential oils, alcohol, and common allergens. Only 8 ingredients minimizes the risk of irritation. Patch test still recommended.
The brand recommends using this serum only in the morning. Avoid evening application to prevent potential skin dehydration from high-dose caffeine.
Manufactured in Bulgaria under strict European Union cosmetic safety regulations (EC No 1223/2009). Fully recyclable packaging.
Ingredient breakdown
INGREDIENTSCaffeine 5%Proven
A potent antioxidant and vasoconstrictor that improves microcirculation, reduces puffiness, and helps diminish the appearance of dark circles when applied topically. At 5%, this is a high concentration for eye serums.
- Mechanism: Constricts blood vessels and stimulates lymphatic drainage to reduce fluid retention around the eyes.
- Antioxidant: Neutralizes free radicals and may help protect against UV-induced skin damage.
- Penetration: Small, water-soluble molecule with good skin absorption ability.
Camellia Sinensis (Green Tea) Leaf ExtractProven
A powerhouse botanical extract rich in polyphenols (especially EGCG), catechins, and L-theanine that provides robust antioxidant protection while calming and soothing delicate eye skin.
- EGCG Content: Epigallocatechin gallate is one of the most studied antioxidants in skincare with strong anti-inflammatory properties.
- Skin Benefits: Research shows green tea extract can improve skin elasticity, hydration, and reduce redness.
- Synergy: Works synergistically with caffeine to enhance overall antioxidant protection.
Propylene GlycolProven
A humectant and penetration enhancer that helps deliver caffeine deeper into the skin while also providing lightweight hydration to the eye area.
- Function: Acts as both a moisturizer and a vehicle to improve absorption of active ingredients.
- Safety: FDA-approved and widely used in cosmetics. Comedogenic rating of 0.
8 ingredients
Water / Aqua, Caffeine, Propylene Glycol, Camellia Sinensis Leaf Extract, Xanthan Gum, Phenoxyethanol, PPG-1-PEG-9 Lauryl Glycol Ether, Disodium EDTA.
Where it fits in your routine
ROUTINEUse in the morning only. Apply before moisturizers and oil-based treatments. Pairs well with Revox B77 Hyaluronic Acid 5% for added hydration.
How to use
HOW TO USECleanse & Dry
Start with freshly cleansed, completely dry skin. Ensure no water residue remains around the eye area for optimal absorption.
Apply 4-5 Drops
Dispense 4-5 drops onto your fingertip. A little goes a long way with this concentrated formula.
Gently Tap Around Eyes
Using your ring finger, gently tap the serum around the entire eye contour area — under the eyes, on the orbital bone, and along the brow bone. Do not rub.
Wait & Layer
Wait approximately 30 seconds until the serum is fully absorbed and dry before applying your next product (moisturizer, eye cream, or sunscreen).
Who is it for?
WHOPerfect for you if:
- You wake up with puffy eyes or morning swelling
- You have visible dark circles caused by poor circulation
- You want a clean, minimalist formula with few ingredients
- You prefer lightweight, non-greasy eye products
- You are sensitive to fragrances and heavy formulas
- You want an affordable yet effective eye serum
- You are looking for a fungal acne-safe eye treatment
Consider alternatives if:
- Your dark circles are caused by hyperpigmentation (try vitamin C or niacinamide)
- You need intensive wrinkle treatment (try retinol or peptide eye creams)
- You want a hydrating eye cream (this is a serum, not a moisturizer)
- You need a product for both AM and PM use (this is morning-only)
- You have structural dark circles from hollowness or fat loss
Skin type compatibility
SKIN TYPESOil-free, water-based gel absorbs instantly without adding any shine or greasiness. Perfect under makeup.
Provides minimal hydration on its own. Must be layered with a rich eye cream or moisturizer. Caffeine can feel drying for very dry skin types.
Lightweight formula works well across all face zones without contributing to oiliness or dryness.
Fragrance-free and minimal ingredients reduce irritation risk. Patch test recommended as 5% caffeine may cause mild tingling for very reactive skin.
Non-comedogenic (0/5), oil-free, silicone-free, and fungal acne safe. Will not trigger breakouts around the eye area.
Results timeline
MONTHS 2-3Immediate Depuffing
The caffeine constricts blood vessels on contact, providing a noticeable tightening and depuffing effect within minutes of application. Eyes appear more awake and refreshed.
70% noticed immediate improvement in puffinessReduced Morning Swelling
With daily use, the under-eye area begins to show consistently reduced morning puffiness. The skin around the eyes starts to feel firmer and more toned.
55% noticed less morning puffinessDark Circles Appear Lighter
Improved microcirculation leads to a visible reduction in the bluish-purple tone of vascular dark circles. The eye area looks brighter and more even-toned overall.
40% noticed lighter dark circlesCumulative Antioxidant Benefits
Long-term antioxidant protection from caffeine and green tea helps defend against environmental aging. Skin around the eyes maintains a more youthful, smoother appearance.
35% reported overall improved eye area appearanceRatings by platform
730+ REVIEWSPros & cons
BALANCEDPraised
- Extremely affordable for a dedicated eye serum
- Only 8 clean, simple ingredients — great for sensitive skin
- Noticeable depuffing effect, especially for morning swelling
- Lightweight gel texture absorbs fast and layers well under makeup
- Fragrance-free, oil-free, silicone-free, and vegan
- Fungal acne safe with 0/5 comedogenic rating
- Generous 30ml size lasts several months with daily use
- Pairs well with other Revox B77 products in a full routine
Criticized
- Morning-only use limits versatility (cannot be used at night)
- Can feel slightly sticky or tacky while drying
- Not hydrating enough alone for very dry skin types
- Modest results for deep-set structural dark circles
- Dropper bottle may be less hygienic than airless pumps
- Limited anti-aging benefits (no peptides, retinol, or HA)
- Results are subtle and require consistent long-term use
Budget-friendly alternatives (dupes)
DUPES
Nearly identical concept with 5% caffeine plus purified EGCG from green tea. More complex formula with 25 ingredients including hyaluronic acid and glutathione. Can be used both AM and PM. Widely available at Sephora and Ulta.
Uses yerba mate as its caffeine source along with hyaluronic acid and niacinamide. Gel texture is similar but provides more hydration. Does not list a specific caffeine concentration percentage.
A cream rather than serum format with caffeine and Matrixyl peptide complex. More hydrating and better for anti-wrinkle concerns, but heavier texture and more complex formula with potential irritants.
Comparison with competitors
SIDE-BY-SIDE
Storage & shelf life
12 MONTHS12 months after opening
Store at room temperature in a cool, dry place away from direct sunlight. Can be stored in the fridge for an extra soothing, depuffing effect.
Glass dropper bottle with recyclable packaging. Wipe the bottle neck after each use to prevent residue buildup.
Yes, 30ml is well under the 100ml carry-on liquid limit. Compact dropper bottle fits easily in any toiletry bag.
Frequently asked questions
FAQThe formula contains no retinoids, salicylic acid, hydroquinone, or chemical sunscreen filters — the most common ingredients to avoid during pregnancy. However, Revox B77 explicitly states that their products are not tested on pregnant or breastfeeding women. Topical caffeine in moderate amounts is generally considered low risk, but we recommend consulting your OB-GYN or dermatologist before adding any new product to your routine during pregnancy or breastfeeding.
Yes. This serum has been verified as fungal acne safe by multiple ingredient analysis platforms including SkinSort. It contains no fermented ingredients, fatty acids, esters, polysorbates, or oils that feed the Malassezia yeast. With only 8 simple ingredients and an oil-free formula, it is one of the safest eye serums you can use if you are prone to fungal acne.
Yes, caffeine has no known conflicts with retinol, vitamin C, AHA, or BHA products. In fact, the Revox B77 brand recommends combining the Caffeine 5% serum (in the morning) with their Vitamin C 20% serum. If you use retinol or acids at night, apply this caffeine serum only in the morning as recommended. The simple formula makes it highly compatible with virtually any skincare routine.
This serum is suitable for all skin types, but it excels for oily, combination, and acne-prone skin thanks to its oil-free, lightweight, and non-comedogenic formula. Those with dry skin can use it, but should follow up with a hydrating eye cream since the serum alone may not provide sufficient moisture. Sensitive skin users generally tolerate it well due to the minimal ingredient list, though a patch test is always wise.
You may notice an immediate depuffing and tightening effect within minutes of the first application, as caffeine constricts blood vessels on contact. For sustained reduction in puffiness, expect to see improvements within 1-2 weeks of consistent daily use. Dark circles may take 3-4 weeks or more to lighten noticeably, depending on their cause. Results for vascular dark circles (bluish tones) tend to be better than for pigmented or structural dark circles.
Apply this serum in the morning after cleansing and toning, on completely dry skin. It goes before moisturizers, eye creams, oil-based treatments, and sunscreen. As a water-based serum, it should be applied before any heavier products. The brand specifically recommends pairing it with Revox B77 Hyaluronic Acid 5% for added hydration. Avoid using it in the evening, as the brand cautions it may cause dehydration of the skin overnight.
No. This serum has a comedogenic rating of 0/5. It is completely oil-free, silicone-free, and contains no known pore-clogging ingredients. The water-based gel formula is one of the least likely products to cause breakouts. It is safe for use even on the most acne-prone and breakout-sensitive skin around the eye area.
The product has a Period After Opening (PAO) of 12 months. Since you only use 4-5 drops per day, a 30ml bottle typically lasts 3-4 months of daily morning use, well within the shelf life. Store it at room temperature away from direct sunlight. If stored in the fridge, it can provide an extra cooling and depuffing effect during application.
Verdict: Revox B77 Just Caffeine 5% Eye Contour Serum is a no-nonsense, ultra-minimalist eye treatment that delivers exactly what it promises — visible depuffing and brighter-looking eyes at an incredibly affordable price point. With only 8 ingredients, it is one of the cleanest caffeine eye serums on the market, making it a standout choice for sensitive, acne-prone, and fungal acne-prone skin. While it will not replace a comprehensive anti-aging eye cream and its effects on deep structural dark circles are limited, it is an excellent targeted treatment for morning puffiness and vascular dark circles. Best suited for those who value ingredient transparency, minimal formulas, and budget-friendly skincare that genuinely works.
Product Overview
What are Quick Product Notes?
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Pro Tip Alert!
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Paraben-Free
Paraben-Free
Understanding Parabens
Parabens are a large group of preservatives which are used to prevent bacteria growing in cosmetic formulations. There has been some healthy controversy surrounding them due to a few studies finding paraben presence in breast tumours and breast tissue. However, the majority of the scientific community have deemed these findings non-conclusive due to the limitations of these studies. There's still a lot of support for avoiding parabens following the better safe than sorry route. If you do we completely support you! If you are concerned about the health safety of parabens, then feel free to avoid them by looking out for the Paraben-Free icon. If not, don't worry about it - they do have had one of the longest safety records as preservatives!
Which Ingredients are classified as Paraben?
A product will be paraben-free if it does not contain any of the following parabens:
- Sodium Isobutylparaben
- Sodium Ethylparaben
- Sodium Butylparaben
- Propylparaben
- Isopropylparaben
- Isobutylparaben
- Sodium Propylparaben
- Butylparaben
- Ethylparaben
- Sodium Methylparaben
- Methylparaben
Sulfate-Free
Sulfate-Free
Understanding Sulfates
Sulfates are a large group of ingredients which act as cleansing agents in Cosmetics. They help loosen up the dirt and grime from your skin and hair to allow for water to wash it away with ease. However some sulfates are so good at their job, they can wash off your skin’s own natural oils that keep it moisturised and protected which can lead to dryness and irritation. Most people will find no issues with sulfate, however if you find your skin doesn't like sulfates then free feel to avoid them by looking out for the sulfate-free icon on Skincarisma.
Which ingredients are classified as sulfates?
We've taken the Sulfates which are considered more harsh for our Sulfate-Free status. A product will be Sulfate-Free if it does not contain any of the following Sulfates:
- TEA-Dodecylbenzenesulfonate
- Ammonium Laureth Sulfate
- Sodium Lauryl Sulfate
- PEG-15 Cocamine
- Sodium Laureth Sulfate
- Sodium Cocoyl Sarcosinate
- Sodium C14-16 Olefin Sulfonate
- Dioctyl Sodium Sulfosuccinate
- Ammonium Xylenesulfonate
- Ammonium Lauryl Sulfate
- Sodium Xylenesulfonate
- Sodium Myreth Sulfate
- Sodium Lauryl Sulfoacetate
Alcohol-Free
Alcohol-Free
Understanding Simple Alcohols
Alcohol ingredients are widely used in cosmetics and come in different types. For the most part alcohols are not problematic at all. However one type of alcohols, simple alcohols can be quite drying to the skin because it evaporates very quickly. This can cause irritation which can also lead to other skin complications. These alcohols should never be used alone on your skin, but combined with other cosmetic ingredients, they are normally without issue. However, for some people with sensitive and easily irritable skin, avoiding products with these simple alcohols may be beneficial. If you find your skin doesn't like these simple alcohols, then free feel to avoid them by looking out for the Alcohol-Free icon.
Which Ingredients are classified as Alcohol?
A product will be alcohol-free if it does not contain any of the following alcohol ingredients:
- SD Alcohol
- Alcohol Denat
- Isopropyl Alcohol
- Alcohol
Silicone-Free
Silicone-Free
Understanding Silicones
If you've ever used a skincare, makeup or beauty product that's made your skin look and feel smoother tempoarily - it's likely contained Silicone. They are a popular class of ingredients found in cosmetics due to their smooth, soft, easy-to-spread and smooth properties that help creates an artificial layer/barrier on top of skin or hair (commonly found in conditioners).
For the same reasons they are popularly used, they are also commonly avoided. Anecdotally, many individuals have reported that Silicones cause/excerbate breakouts, irritation, cause a feeling of skin being unable to breathe, cause clumping of cosmetic products and find it difficult to wash off. As a result, those who find them problematic are avoiding them and increasingly, cosmetic companies are avoiding them as well.
If you have had bad experiences with Silicones in the past, or suspect they are problematic then look out for the tick on the Silicone-free label.
Disclaimer
The Silicone-free label only includes the most common Silicone ingredients that have indentified been reported by individuals that could potentially cause issues.
These include: Amodimethicone, Behenoxy Dimethicone, Bis-Aminopropyl Dimethicone, Cetearyl Methicone, Cetyl Dimethicone, Cyclomethicone, Cyclopentasiloxane, Dimethicone, Dimethicone Copolyol, Dimethiconol, Methicone, Phenyl Trimethicone, Phenyl Trimethicone, Stearoxy Dimethicone, Stearyl Dimethicone, Trimethylsilylamodimethicone.
Note, that this does not include all ingredients part of the Silicone class of ingredients.
EU Allergen-Free
EU Allergen-Free
Understanding the Identified Contact Allergens
The EU's Scientific Committee on Consumer Safety (SCCS) has identified and established 26 cosmetic ingredients that are likely contact allergens (potential to cause skin allergies) as demonstrated in clinical or epidemiological studies. The EU's SCCS have recommend cosmetic companies to disclose them on the labels if used and in cases where the concentration exceeds 0.001% in leave-on products and 0.01% in rinse-off products, then they must be labelled.
Look out for the tick on the EU-Allergen free label to know your cosmetic is free from any of the 26 identified cosmetic ingredients.
For more information regarding the EU's Scientific Committee on Consumer Safety, please visit their official website.
Disclaimer
The EU Allergen Free label is for the 26 ingredients identified by the EU SCCS and products will be only flagged if a suspected ingredient is on it's ingredient list. It is possible for cosmetics to contain one of the suspect ingredients without it appearing on the ingredient list due to it not reaching the concentration threshold to disclose it and cosmetic manufacturers choice to not disclose it.
Also note, the EU Allergen Free label is not personalized for your own allergies you may have and it does not constitute as medical advice. For your specific case, always consult your medical professiona such as dermatologist, physician, pharmacist, or health care provider - please read our medical disclaimer for more information.
Fungal Acne (Molassezia) Safe
Fungal Acne (Molassezia) Safe
Understanding Fungal Acne (Pityrosporum Folliculitis/Malassezia Folliculitis)
Pityrosporum Folliculitis/Malassezia folliculitis or simply known as Fungal Acne is a persistent acne-like condition that commonly responds poorly to traditional acne-treating methods. Unlike most cases of Acne where bacteria is the culprit, Fungi is the culprit of Fungal Acne (Hence the name!). There are certain classes & groups of ingredients that have been shown to promote and feed the growth of the Fungal Acne, Fungi such as fatty acids, oils, esters, polysorbates and fermented ingredients.
For more information regarding Fungal Acne, please visit Simple Skincare Science (f.c) - #3 of our Recommend Skincare Resources for an amazing comprehensive guide!
Please Read: How to use the Fungal Acne (Malassezia) Label
At SkinCarisma, we've done our best to identify as many ingredients as possible but note the fungal-free label may not be 100% accurate due to the complexconditions and combination of ingredients that malezzeria can thrive on.
Additionally, products that may contain ingredients that have shown to feed Malassezia may not neccessarily exacerbate the condition due to concentration of ingredient used in the product, this information is simply not available on the products.
As a result, please note this is only an experimental label that can be best used to possible identify problematic products you have used in the past. It is in no way a perfect identifier nor a predictor in whether or not it will exacerbate or cause fungal acne. It will continue to be worked on as more information and research comes to light.
If you find any ingredients you believe should be included, please email us at snails@skincarisma.com.
Disclaimer
Due to the lack of substantial research into this area it is very likely there are other ingredients and class/groups of ingredients that could feed Fungal Acne which have not been indentified.
The Fungal-Safe label does not constitute as medical advice. For your specific case, always consult your medical professiona such as dermatologist, physician, pharmacist, or health care provider - please read our medical disclaimer for more information.
What are Notable Effects & Ingredients?
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Pro Tip Alert!
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Anti-Aging from 2 ingredient(s):
What are Ingredients Related to Skin Type?
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
Pro Tip Alert!
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Dry Skin
Oily/Acne-Prone Skin
Sensitive Skin
What is the Ingredient Safety Breakdown?
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
Pro Tip Alert!
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 0 |
Caffeine
Skin Conditioning
|
Anti-Aging
Irritation
|
|
| 3 |
Propylene Glycol
Solvent, Skin Conditioning, Fragrance, Humectant, Viscosity Controlling, Viscosity Decreasing Agent, Skin-Conditioningagent - Miscellaneous
|
Hydrating
|
|
| 0 |
Camellia Sinensis Leaf Extract
Antimicrobial, Astringent, Emollient, Humectant, Masking, Skin Conditioning, Antioxidant, Skin Protecting, Tonic
|
Anti-Aging
Hydrating
Redness
Irritation
Pores
|
|
| 1 |
Xanthan Gum
Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant -Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling
|
|