Here’s a detailed product description for Biotherm Aquasource Hydra Barrier Cleanser 150 ml — what it does, why it’s useful, and what to expect from using it regularly.

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🌿 What Is It — Purpose & Position in Your Skincare Routine

The Aquasource Hydra Barrier Cleanser is a cream‑to‑foam facial cleanser from Biotherm designed not just to remove dirt, oil, and impurities — but to cleanse while also protecting and supporting your skin barrier. ([Biotherm][1])

Unlike harsh cleansers that strip skin of natural oils, this cleanser aims to clean gently, hydrate, and soothe — making it especially suitable for people with sensitive, dry, or barrier‑compromised skin, or those living in environments that stress the skin (like pollution, frequent washing, air‑conditioning, etc.). ([Care to Beauty][2])

It’s a solid choice for the first step in a skincare routine — morning or night — when you want to cleanse without damaging the skin’s natural protective layer.

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✨ Key Benefits & What It Does

* Barrier‑friendly cleansing: The formula includes Bio‑Ceramides and Bio‑tech Plankton™, which help strengthen and support the skin’s natural barrier while cleansing. This reduces the risk of dryness, tightness, or irritation after washing. ([Biotherm][1])
* Non‑drying & hydrating: Rather than stripping skin, this cleanser helps retain moisture — leaving skin feeling soft and comfortable. According to brand claims, many users reported reduced tightness and less redness after cleansing and over consistent use. ([Biotherm][3])
* Gentle yet effective removal of impurities: The cleanser transforms from a creamy texture into a delicate foam on contact with water — gently lifting away dirt, excess oil, pollution, and other impurities while being mild on skin. ([Biotherm][1])
* Good for sensitive skin / barrier‑compromised skin: Because it's soap-free, biodegradable, and formulated to respect the skin barrier, it tends to be milder than many traditional cleansers — a plus if your skin reacts easily. ([Biotherm][3])
* Improves skin comfort & preps skin for next steps: After cleansing, skin feels refreshed, balanced, and ready for toner, serum, or moisturizer — a healthy base for the rest of your routine. ([Biotherm][1])

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🧪 Key Ingredients & Their Roles

Here are some of the standout ingredients and why they matter:

| Ingredient | Role / Benefit |
| ------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| Bio‑tech Plankton™ | Provides nutrients, supports skin health and regeneration — helping maintain a healthy, resilient skin barrier. ([Biotherm][1]) |
| Bio‑Ceramides | Ceramides are crucial lipids in the skin barrier — they help lock in moisture and keep skin protected from environmental stress. ([Biotherm][1]) |
| Niacinamide (Vitamin B3) | Soothes skin, supports barrier function, and can help improve skin tone and resilience. ([Biotherm][1]) |
| Gentle surfactants & emollients (e.g. sodium cocoyl glycinate, jojoba oil) | Provide cleansing action while remaining mild, and help leave skin soft rather than stripped. ([Biotherm][3]) |

The formula is also soap‑free, 99% biodegradable, and built with eco-conscious packaging — reflecting Biotherm’s “Blue Commitments.” ([Biotherm][1])

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🧴 Texture & User Experience

* The cleanser is described as a “cream-to-foam” — it starts as a creamy lotion, then transforms into a soft, airy foam when mixed with water. ([Biotherm][1])
* On application, it feels gentle and soothing, and after rinsing, skin feels clean, refreshed, not tight or dry — many users report immediate comfort and smoothness. ([Perfect Hair][4])
* It works well even for sensitive or delicate skin, since it avoids harsh detergents or stripping agents. ([Heinemann Shop][5])
* Being a gentle cleanser, it can also function as a daily-use cleanser — for both morning and night cleansing — especially good if you follow up with moisturizing and barrier-supporting products. ([Tax Free][6])

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🌅 How to Use It — Application Guide

1. Wet your face with lukewarm water.
2. Pump a small amount of the cleanser into your palms, lather with a little water to transform it into foam.
3. Gently massage onto your face (and neck, if desired) in circular motions to dissolve impurities, dirt, oil, and pollution.
4. Rinse thoroughly with lukewarm water. Avoid direct eye contact — if it occurs, rinse thoroughly. ([Biotherm][1])
5. Follow with your regular skincare routine — toner/serum/moisturizer — to lock in hydration and barrier protection.

You can use it daily, morning and night, depending on your skin’s needs and lifestyle.

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✅ Who It’s Best For

This cleanser is especially suitable for:

* People with dry, sensitive or barrier‑compromised skin who want a gentle cleanser that won’t strip moisture.
* Those living in polluted or harsh climates, or those exposed to frequent cleansing/washing, needing a cleanser that respects the skin barrier.
* Anyone wanting a balanced daily cleanser that cleans effectively but also hydrates and prepares skin for the rest of the skincare routine.
* People who follow a barrier-supportive skincare approach (cleanser → gentle toning → moisturizing / barrier creams).
* Users who prefer mild, eco‑conscious formulations with gentle surfactants and minimal risk of irritation.

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⚠️ What to Keep in Mind & Possible Limitations

* Because it’s a gentle, barrier‑friendly cleanser, it may not remove heavy makeup or sunscreen thoroughly — you might need a makeup remover or double‑cleanse if you use heavy or water‑resistant products.
* If you have very oily or acne‑prone skin, and rely on strongly degreasing cleansers, this may feel a bit light — although its gentle nature helps avoid over‑drying.
* As with all skin products — patch testing first is a good idea if you have very reactive skin or known sensitivities (especially to fragrance).

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🌟 Verdict — Why It’s a Good Cleanser, Especially for Barrier & Sensitive Skin Needs

The Aquasource Hydra Barrier Cleanser stands out as more than just a face wash — it’s a skin‑barrier conscious cleanser that balances cleansing, hydration, and skin health. For someone looking to maintain skin comfort, avoid dryness or irritation, and build a skincare routine around a healthy, resilient skin barrier, this cleanser is a very strong choice.

Given your (from previous product choices) apparent interest in hydration‑focused, gentle skincare — this cleanser fits nicely into a routine where moisturizers and barrier creams follow.

If you like, I can compare this cleanser with 2–3 other gentle cleansers (suitable for Indian climate and sensitive skin) — to help you pick the best one for your skin type.

[1]: https://int.biotherm.com/en_GB/women-care/by-skincare-category/cleansers-exfoliators/aquasource-hydra-barrier-cleanser/BIO02991.html?utm_source=chatgpt.com "Aquasource hydra barrier cleanser to gently clean the skin | BIOTHERM"
[2]: https://www.caretobeauty.com/in/biotherm-aquasource-hydra-barrier-cleanser-150ml/?utm_source=chatgpt.com "Biotherm Aquasource Hydra Barrier Cleanser 150ml India"
[3]: https://www.biotherm.com/aqs-hydrabarrier-cleanser/15842618.html?utm_source=chatgpt.com "AQUASOURCE HYDRA BARRIER CLEANSER | Biotherm US"
[4]: https://www.perfecthair.ch/en/beauty/care/facial-care/aquasource-hydra-barrier-cleanser?utm_source=chatgpt.com "Aquasource - Hydra Barrier Cleanser"
[5]: https://www.heinemann-shop.com/en/global/biotherm/biotherm-aquasource-hydra-barrier-cleanser-150-ml/p/000000000001682584/?utm_source=chatgpt.com "Buy Biotherm Aquasource Hydra Barrier Cleanser 150 ml online at a great price | Heinemann Shop"
[6]: https://www.tax-free.no/en/product1682584/biotherm-aquasource-hydra-barrier-cleanser-150-ml?utm_source=chatgpt.com "Biotherm Aquasource Hydra Barrier Cleanser 150 ml"