Step 3 · Hydration
No3. Hydro Boost Collagel Serum
Hydro Boost Collagel Serum
A hydrating anti-age serum for thirsty skin. Morning and evening.
Hydro Boost Collagel gives the skin instant moisture and hydration. Hyaluronic acid across the full spectrum of molecular sizes provides long-lasting hydration, while liquid minerals and cucumber hydrosol lock moisture into the skin and, with their clean, juicy scent, bring a feeling of lightness and freshness to your ritual.
30 ml · Hydrating gel
€99
Approximately 3 months, depending on use.
- Free shipping across the EU.
- Made to order.
Ships within 3 days.
- Hyaluronic acid and Sodium PCA help bind moisture.
- Hydrated skin looks smoother and fresher.
- A peptide complements care for the appearance of fine lines.
- The light gel layers easily beneath day oil or night balm.
- Skin
- Hydrated, soft and fresh-feeling skin
- Texture
- Hydrating gel
- Scent
- Cucumber and aloe vera
- Mood
- Freshness, summer, ocean
Texture and scent
A fresh gel. A gentle touch.
The light gel spreads gently over the skin after toning. Collagel combines hydrating ingredients with a malachite mineral extract.
Cucumber and aloe vera accompany its fresh character.
Nectar Infusion Complex™
What is inside.
A nectar of our own macerates, an infusion of biotechnology, one complex of five steps. What Nectar Infusion Complex™ is →
Hyaluronic acid
Sodium hyaluronate in different molecular sizes.
Binds water and helps keep skin hydrated. Eases the feeling of dryness for a smoother, more supple-looking complexion.
Acetyl Hexapeptide-8
A biotechnology-derived peptide used in care for expression lines.
Helps soften the appearance of fine expression lines for smoother-looking skin.
Malachite
A mineral extract in the hydrating serum.
Complements antioxidant care for skin exposed to everyday environmental stress.
Aloe vera and cucumber
Botanical hydrosols in the water base.
Lightly moisten and refresh skin during application, giving the water-based gel a pleasant, light touch.
All 21 ingredients of this product in the atlas →
Full ingredients (INCI)
Aloe barbadensis leaf water, Cucumis sativus fruit water, Acetyl hexapeptide-8, Sodium hyaluronate, Sodium PCA, Biosaccharide gum-1, Cucumis sativus fruit extract, Glyceryl caprylate, Lactic acid, Malachite extract, Tremella fuciformis extract, Glycerin, Aqua, Sodium phytate, Alcohol, Clitoria ternatea flower extract, Malva sylvestris flower extract, Centaurea cyanus flower extract, Aroma, Caprylyl glycol, Citronellol
All ingredients, including fragrance components.
The ingredients story →
Application
Three pumps. Massage gently.
Shake
Shake the bottle before use.
Apply three pumps
Apply three pumps to the face, neck and décolletage and massage gently in circular motions.
Complete your care
Do not rinse; continue with the next step of the ritual.
Follow with No4. Day Serum in the morning or Night Balm in the evening.
Customer experiences
What the women who use it say.
We have no rated reviews yet. We ask every customer after delivery and publish only reviews that belong to a real order — which is why they appear slowly.
What customers have written to us (7)
I have used J.Oli for several years now. I used to have problematic skin, but over the time I have used the complete set my skin has visibly improved and brightened. The products have a very light texture, a pleasant scent and immediate results. After application the skin is beautifully supple and nourished.
Markéta, 36 · Prague This serum is superb. My skin is hydrated and soft straight away. The cucumber scent is wonderfully refreshing.
Tereza, 34 · Karlovy Vary · A customer since 2024 I have finally found a hydration that sinks in nicely and leaves no film. My skin looks fresh.
Eva, 53 · Jihlava · A customer for several months I use it morning and evening and I am delighted. My skin is supple and looks healthy.
Barbora, 28 · Teplice · A customer since autumn 2024 The texture is light and pleasant. After a few weeks I can see my skin is smoother.
Ivana, 46 · Kladno · A customer since 2023 I love this serum. It gives skin moisture without being greasy. Excellent.
Nikola, 32 · Havířov · A customer for six months My skin is beautifully soft and hydrated afterwards. The scent is fresh and pleasant.
Zuzana, 39 · Most · A customer since spring 2025
Messages customers sent us. We publish them verbatim.
You may also wonder
Can I use Collagel on its own?
It can be your hydrating layer in another routine too. In Generation Perfect, No4. follows: oils help retain moisture and add softness. Adjust the amount of finishing care to how your skin feels.
Before or after the oil serum?
Before it. Apply the water-based gel after No2. toner and massage gently. Then add day oil serum or night balm, allowing the lighter texture to spread directly over the skin.
How much gel should I use?
Start with three pumps for the face, neck and décolletage. Apply an even, thin layer. If excess remains on your skin, use a little less next time.
Why does it cost this much?
Jitka Vrňáková develops and hand-prepares the formulas in small batches in Prague. Hydrosols are distilled in copper, botanical macerates mature for weeks and actives are used at high concentration. Full sizes are made only after your order, so you are not paying for stock or for middlemen.
Can I try it first?
Yes. The Travel Luxe set holds the same formulas in smaller volumes and lasts approximately 14–20 days, depending on use. It is the smallest way to get to know the whole ritual. You can also try the products in the salons we work with.
What if it does not suit me?
Unopened goods can be returned within 14 days of delivery without giving a reason. For cosmetics whose hygienic seal has been broken, the law does not allow this for hygiene reasons (Section 1837(g) of the Czech Civil Code) — which is why we suggest starting with the travel set. If you are unsure, write to Jitka before you buy; she replies personally.
My skin is sensitive. What should I watch for?
Introduce new care gradually and start with a small amount. Before first use, apply a little to the inside of your forearm and wait 24 hours. The full INCI is listed with every product, so you can check a specific ingredient. If you are pregnant, breastfeeding or being treated for a skin condition, speak to your doctor first.
How soon will I see a difference?
Texture, scent and how skin feels are apparent straight away. For care that works on hydration and the skin barrier, it makes sense to judge the result after a few weeks of the ritual morning and evening. We promise no particular number of days — every complexion responds differently.
When will it arrive and what does delivery cost?
Delivery across the EU is free, always. Travel Luxe is in stock; full sizes are made to order by Jitka. We dispatch within 3 working days and send you a tracking number as soon as the parcel is handed to the carrier.
Can I combine J.Oli with what I already use?
Yes. The ritual is built so the steps follow one another from the lightest texture to the richest, and a product from another brand fits into that order. In the morning, always finish with SPF protection. If you use prescription treatments, speak to your doctor first.
Generation Perfect Longevity Method
One step. A complete ritual.
- 1
Cleanse
Open step - 2
Tone
Open step - 3
Hydrate
You are here - 4
Nourish a.m.
Open step - 4
Nourish p.m.
Open step
Cleansing, toning and hydration stay the same morning and evening. The final step is the day serum or the night balm.
The full collection
Generation Perfect Complete
Five full-size products for morning and evening care.
€371
Individually €458.
Save against individual products €87.
The complete ritual experience
„After application the skin is beautifully supple and nourished.“
Markéta, 36 · Prague
Would you like to try the care first?
Find a salon →