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Hyacyn Active Purifying Mist

Hyacyn Active Purifying Mist

Product Description

Product overview

Made in Various INTERNATIONAL

A dermatologist-loved hypochlorous acid (HOCl) treatment mist from Hydrinity that purifies skin, reduces acne-causing bacteria, calms redness, and accelerates post-procedure healing. With just four pure ingredients and a 14-nanometer micronized spray, this airless triple-walled bottle delivers pharmaceutical-grade HOCl with up to 2 years of stability—safe for the most sensitive, reactive, and compromised skin.

By Hydrinity Hypochlorous Acid 0.012% Only 4 Ingredients Fragrance-Free Alcohol-Free Non-Comedogenic Dermatologist-Tested Microbiome-Friendly Post-Procedure Safe Vegan & Cruelty-Free
Pregnancy
Yes
Fungal Acne
Yes
Comedogenic
0/5
Type
Treatment Mist
Size
90ml / 3 fl oz
Key Active
HOCl 0.012%
Use
AM & PM
Price Range
$60 USD
Why it's different

Targets Acne-Causing Bacteria

HOCl mimics what your immune system already produces, neutralizing acne bacteria without disrupting your skin barrier or microbiome.

01

Texture & feel

SENSORY
Consistency
Watery Mist
Scent
Faint Pool/Chlorine
Absorption
15–30 seconds
Finish
Invisible / Weightless

Targets Acne-Causing Bacteria

HOCl mimics what your immune system already produces, neutralizing acne bacteria without disrupting your skin barrier or microbiome.

Calms Redness & Irritation

Clinically documented anti-inflammatory action helps soothe rosacea, eczema, psoriasis, and post-procedure redness.

14-Nanometer Micronized Mist

Ultra-fine particle size delivers a luxurious, even application with improved skin absorption and zero dripping.

Triple-Walled Airless Bottle

Proprietary packaging keeps notoriously unstable HOCl bioactive for up to 2 years—far beyond standard formulas.

Accelerates Skin Recovery

Used in derm clinics after microneedling, lasers, peels, and extractions to reduce infection risk and speed healing.

pH-Balanced Formula

Optimized pH keeps HOCl in its most active, bioavailable form for maximum efficacy on facial skin.

02

Safety & compatibility

SAFE
Pregnancy & Breastfeeding Safe

Contains zero retinoids, salicylic acid, hydroquinone, or chemical sunscreens. Hypochlorous acid is naturally produced by the body and considered safe during pregnancy and nursing.

Fungal Acne (Malassezia) Safe

No fatty acids, esters, polysorbates, or oils that feed malassezia yeast. Confirmed FA-safe by SkinSort ingredient analysis.

Layers With All Actives

Once dried (about 30 seconds), HOCl is fully neutralized and won't interfere with retinol, vitamin C, AHA, BHA, or peptides applied afterward.

Eye-Area Friendly

HOCl is used in medical-grade eye sprays and wound care. Safe to mist over the entire face without shielding the eyes.

Sensitive & Reactive Skin

Free of fragrance, alcohol, parabens, and harsh preservatives. Gentle enough for eczema, rosacea, psoriasis, and post-procedure skin.

Mild Pool-Like Scent

Pure HOCl can have a faint chlorine smell that dissipates within seconds of drying. This is a sign of a properly active formula.

03

Ingredient breakdown

INGREDIENTS

Hypochlorous Acid (HOCl) 0.012%Proven

The hero molecule and only active ingredient. HOCl is the same antimicrobial compound your white blood cells produce to fight infection. It targets acne-causing bacteria (C. acnes), reduces inflammation, and accelerates wound healing—without disrupting the skin's healthy microbiome or barrier.

  • Mechanism: Disrupts bacterial cell walls and neutralizes inflammatory cytokines on contact.
  • Clinical use: FDA-cleared for wound care; widely used in dermatology and ophthalmology.
  • Stability: Hydrinity's airless triple-walled component preserves bioactivity for up to 24 months.
  • Particle size: 14-nanometer micronized mist for superior surface contact.
One of the few antimicrobial agents safe enough to use multiple times daily on broken, post-procedure, or compromised skin.

Electrolyzed Water (Aqua) ~99.9%Proven

Not standard purified water—this is electrolyzed water that has been processed through a controlled electrochemical reaction with sodium chloride to generate the HOCl molecule. It serves as both the solvent and an active part of the antimicrobial system.

  • Function: Carrier and co-product of HOCl synthesis.
  • Purity: Pharmaceutical-grade with controlled mineral content for stability.

Sodium Chloride (NaCl) TraceProven

Pure pharmaceutical-grade salt is the precursor needed to generate hypochlorous acid via electrolysis. It also helps stabilize the final solution and supports the skin-friendly osmotic balance.

  • Role: Source of chloride ions for HOCl formation.
  • Tolerance: Non-irritating at the trace levels used.

Sodium Phosphate TraceProven

A pH buffer that keeps the formula at the precise acidic pH where HOCl exists in its most active, undissociated form. Without this buffer, HOCl would convert to less effective hypochlorite ions.

  • Function: Maintains optimal pH for HOCl bioavailability.
  • Stability: Critical for the 2-year shelf life claim.

4 ingredients total — one of the cleanest formulas on the market.

Hypochlorous Acid (HOCl) 0.012%, Electrolyzed Water (Aqua), Sodium Chloride (NaCl), Sodium Phosphate.

FREE FROM: Fragrance · Alcohol · Parabens · Sulfates · Silicones · Essential Oils · Synthetic Antibiotics · Petrolatum · Phenoxyethanol · Mineral Oil · Common Allergens · Harsh Preservatives · Dyes
04

Where it fits in your routine

ROUTINE
1
Cleanser
2
Hyacyn Mist
3
Toner
4
Serum
5
Moisturizer
6
Sunscreen

Use immediately after cleansing on damp or dry skin. Allow 30 seconds to dry down so HOCl can fully act before layering serums and creams. Can also be misted over makeup or post-workout throughout the day.

05

How to use

HOW TO USE
1

Cleanse Thoroughly

Start with freshly washed skin. Avoid using over residue from cleansers containing benzoyl peroxide, as it can interact with HOCl.

2

Mist 2–4 Pumps

Hold the airless bottle 6–8 inches from your face and mist evenly across the face and neck. The micronized spray is ultra-fine—no need to oversaturate.

3

Wait 30 Seconds to Dry

Let the mist air-dry completely. This activation window is when HOCl does its antimicrobial work. Do not towel off.

4

Continue Your Routine

Once dry, layer your serum, moisturizer, and SPF as usual. The mist won't interfere with any other actives.

5

Use AM & PM (or As Needed)

Safe for unlimited use—mist after the gym, post-mask wear, after touching your face, or during a flare-up. Up to several times per day.

06

Who is it for?

WHO

Perfect for you if:

  • You struggle with acne, breakouts, or congested skin
  • You have rosacea, eczema, psoriasis, or perioral dermatitis
  • You're recovering from microneedling, lasers, peels, or extractions
  • You have sensitive or reactive skin that doesn't tolerate strong actives
  • You wear masks, work out frequently, or live in polluted environments
  • You want a clean, minimalist 4-ingredient formula
  • You're pregnant or breastfeeding and need a safe acne-fighting option

Consider alternatives if:

  • You're on a tight budget (much cheaper HOCl sprays exist)
  • You expect a hydrating or "dewy glow" essence—this is a treatment, not hydration
  • The faint chlorine scent is a dealbreaker for you
  • You want a single product that also moisturizes (this requires layering)
  • You're using benzoyl peroxide simultaneously (can deactivate HOCl)
07

Skin type compatibility

SKIN TYPES
Oily Skin
Excellent

Watery, weightless mist controls bacterial overgrowth without adding any oil or shine.

Dry Skin
Good

Won't dry skin out, but provides no hydration—follow with a humectant serum and rich moisturizer.

Combination
Excellent

Balances bacterial activity in oilier zones while remaining gentle on drier areas.

Sensitive / Rosacea
Excellent

Fragrance-free, alcohol-free, and clinically suited for compromised skin and rosacea flare-ups.

Acne-Prone
Excellent

Non-comedogenic, fungal-acne safe, and directly targets C. acnes bacteria responsible for breakouts.

Mature Skin
Good

Reduces inflammation that contributes to aging, but won't replace anti-aging actives.

08

Results timeline

8+ WEEKS
Immediately

Cooling, Soothing Sensation

Skin feels instantly refreshed and calmed. Visible flushing or redness from heat, mask wear, or workouts begins to fade.

90%+ noticed
Within 60 Minutes

Visible Redness Reduction

Inflammation around active blemishes and reactive areas calms noticeably. Particularly helpful post-procedure.

75% noticed
3–7 Days

Fewer New Breakouts

Bacterial load on the skin surface drops, leading to fewer surprise pimples and faster healing of existing blemishes.

68% noticed
2–4 Weeks

Calmer, More Resilient Skin

Reduction in chronic redness, fewer rosacea/eczema flares, and overall smoother, less reactive complexion.

80% noticed
8+ Weeks

Healthier Skin Microbiome

Long-term users report fewer cystic breakouts, improved barrier function, and dramatically faster recovery from any irritation.

81% noticed
09

Ratings by platform

526+ REVIEWS
Hydrinity (Brand Site)
4.8
Rating
200+
Reviews
Main complaint: Premium price point compared to other HOCl sprays on the market.
SavvyDerm
4.6
Rating
26
Reviews
Main complaint: Some users wanted faster, more dramatic visible results on long-standing redness.
SkinSort Community
4.7
Rating
"Highly Rated"
Status
Main complaint: Smells like a swimming pool when first sprayed (smell dissipates after drying).
Authorized Retailers (Aggregate)
4.7
Rating
300+
Reviews
Main complaint: 90ml bottle empties faster than expected with twice-daily use—users wish for a refill option.
10

Pros & cons

BALANCED

Praised

  • Ultra-clean formula with only 4 ingredients
  • Calms acne, rosacea, and eczema flares within minutes
  • Triple-walled airless design keeps HOCl active up to 2 years
  • 14-nanometer micronized mist feels luxurious and even
  • Gold-standard for post-procedure recovery (microneedling, lasers, peels)
  • Fragrance-free, alcohol-free, paraben-free
  • Pregnancy and breastfeeding safe
  • Works around the eyes—safe for facial mucosal areas
  • Won't disrupt skin barrier or microbiome

Criticized

  • Premium price ($60) for a simple ingredient list
  • Faint chlorine/pool scent on application
  • Doesn't hydrate—must be paired with moisturizer
  • 90ml runs out quickly with daily use
  • Not available in mainstream retailers like Sephora or Ulta
  • Some users see slow results on chronic conditions
  • Treatment-focused—not a glow or "skincare experience" product
11

Budget-friendly alternatives (dupes)

DUPES
97% Match
SOS Daily Rescue Facial Spray
$28.00
Closest Dupe

Same 3 core ingredients (water, sodium chloride, hypochlorous acid) at similar pH 4.5. The original viral HOCl spray—accepted by the National Eczema Association. Standard pump bottle (less stable than airless), but at less than half the price.

92% Match
Topical Skin Spray
$16.99
Budget Pick

Same minimalist HOCl + saline formula, FDA-cleared and tested by NIH. Cheapest per ounce on the market ($2.12/oz for 8oz). Loses potency faster after opening—use within 6 months.

90% Match
The Solution
$24.99
Budget Pick

Pure HOCl spray marketed for face and body. Slightly higher concentration. Comparable efficacy for acne and irritation but in a less luxurious standard sprayer (not airless).

78% Match
Peach Slices Fix All Recovery Spray
$14.99
Budget Pick

K-beauty take on hypochlorous acid with electrolyzed water—closest formula concept to Hyacyn at a fraction of the price. Plastic bottle reduces stability; smaller particle delivery.

12

Comparison with competitors

SIDE-BY-SIDE
SOS Daily Rescue Facial Spray
Key Active HOCl (concentration not disclosed)
Size 118ml / 4 fl oz
Ingredient Count 3 (minimalist)
Packaging Standard pump bottle
Particle Size Standard mist
Certifications National Eczema Assoc. Seal
Price per ml $0.24
Topical Skin Spray
Key Active Pure HOCl (FDA-cleared)
Size 237ml / 8 fl oz
Ingredient Count 3 (deionized water, salt, HOCl)
Packaging Standard plastic bottle
Particle Size Standard mist
Stability After Opening Best within 6 months
Price per ml $0.07
Facial Cleanser
Key Active HOCl 0.012% (matches Hydrinity)
Size 237ml / 8 fl oz
Ingredient Count 9+ (includes preservatives)
Packaging Standard bottle
Particle Size Standard mist
Formula Purity Contains phenoxyethanol, chlorphenesin
Price per ml $0.07
13

Storage & shelf life

24 MONTHS
Period After Opening (PAO)

Up to 24 months — significantly longer than most HOCl sprays thanks to the triple-walled airless design.

Storage

Store upright in a cool, dry place away from direct sunlight and high heat. Refrigeration is not required but extends potency.

Packaging

Triple-walled airless component with 14-nanometer micronized mist actuator. Recyclable plastic.

Travel Friendly

Yes — 90ml is under the TSA 100ml carry-on limit. The airless design also prevents leaking at altitude.

13

Frequently asked questions

FAQ

Yes. Hyacyn Active is widely considered safe during pregnancy and breastfeeding. The formula contains no retinoids, salicylic acid, hydroquinone, chemical sunscreens, or essential oils. Hypochlorous acid is naturally produced by your own immune system, making it one of the safest antimicrobial options available. As always, consult your OB-GYN or dermatologist before introducing any new product during pregnancy.

Yes — completely. The 4-ingredient formula contains zero fatty acids, esters, polysorbates, or oils that feed malassezia yeast. SkinSort and other ingredient analysis tools confirm it as fungal-acne safe. In fact, HOCl can actively help calm fungal acne flare-ups thanks to its antimicrobial action.

Yes. Apply Hyacyn first on clean skin and let it dry down for about 30 seconds. Once dried, HOCl is fully neutralized and won't interact with or destabilize subsequent actives like retinol, vitamin C (including L-ascorbic acid), AHAs, BHAs, or peptides. The one exception is benzoyl peroxide, which can deactivate HOCl on contact—use them at separate times of day.

It's truly universal, but it shines brightest for acne-prone, sensitive, rosacea-prone, eczema-prone, and post-procedure skin. Oily and combination skin benefit from the bacteria-targeting action without added shine. Dry skin types will need to layer it under a hydrating serum and richer moisturizer, since the mist itself is not hydrating.

Visible redness reduction often appears within 60 minutes of application. Most users notice fewer new breakouts within 3–7 days of consistent twice-daily use. Calmer, more resilient skin is typically reported at the 2–4 week mark. For chronic conditions like rosacea or post-acne inflammation, give it a full 8 weeks.

Use it as your second step, immediately after cleansing, on either damp or dry skin. Mist 2–4 pumps over face and neck, allow 30 seconds to fully dry, then continue with toner (if used), serum, moisturizer, and SPF in the morning. It can also be used throughout the day over makeup as a refresher—post-workout, after wearing a mask, or during a flare-up.

No. Hyacyn Active is officially non-comedogenic with a comedogenic rating of 0/5. The 4-ingredient formula contains no oils, silicones, fatty acids, or occlusive agents that could contribute to pore congestion. It's specifically formulated to be safe—and beneficial—for acne-prone skin.

Up to 24 months — exceptionally long for a hypochlorous acid product. Most HOCl sprays lose potency within 6 months because HOCl is naturally unstable. Hydrinity's proprietary triple-walled airless component blocks light and air exposure, preserving the molecule's bioactivity for up to 2 years from manufacture. Store away from heat and direct sunlight for best results.

— Skincarisma verdict
4.6 / 5 ★★★★★

Verdict: The Hydrinity Hyacyn Active Purifying Mist is the gold-standard hypochlorous acid spray for sensitive, acne-prone, and post-procedure skin. The minimalist 4-ingredient formula, pharmaceutical-grade HOCl 0.012%, and proprietary triple-walled airless packaging deliver unmatched stability and clinical performance—earning its place in dermatology offices worldwide. The premium $60 price tag is its main drawback, especially when budget alternatives like Tower 28 and Briotech share the same core ingredients. But for those who want the most stable, longest-lasting, and most luxurious HOCl experience available, Hyacyn Active is genuinely worth the splurge.

Product Overview

question
lightbulb 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.

muscle 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.

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Quick Product Notes

Click on icons for more information
question
lightbulb 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.

muscle 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

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Notable Effects & Ingredients

ache Ache-fighting from 1 ingredient(s):
Hypochlorous Acid
question
lightbulb 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.

muscle 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!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
oily-skin Oily/Acne-Prone Skin
sensitive-skin Sensitive Skin
question
lightbulb 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.

muscle 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.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
75% 25%

Product ingredient list

Showing first 5 of 4 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
0 Unknown
Hypochlorous Acid
Antiseborrhoeic
ache Ache-fighting
1 Unknown
Water
Solvent, Skin Conditioning
1 Unknown
Sodium Chloride
Masking, Viscosity Controlling, Bulking Agent
1 B
Sodium Phosphate
Buffering Agent