Thoclor GF1 Aftercare hypochlorous acid mist 50ml
Thoclor

Thoclor - GF1

£52.00

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Product details

About Thoclor - GF1

In short: Thoclor GF1 Aftercare (50ml) is a hypochlorous acid (HOCl) mist for skin straight after procedures such as microneedling, peels or laser. It keeps freshly treated skin clean and calm. The ingredients are just water and HOCl, at pH 5.6.

Aesthetic skin procedures — including microneedling, laser resurfacing, chemical peels, dermabrasion, and waxing — create a controlled wound in the skin. How well and how quickly that wound heals determines the quality of the result. Thoclor GF1 is a clinically developed hypochlorous acid (HOCl) aftercare spray designed to optimise every stage of that recovery.

Used by dermatologists, aestheticians, and skincare therapists worldwide, GF1 sterilises the skin before treatment and supports a calmer recovery afterwards — reducing infection risk, inflammation, and the likelihood of post-inflammatory hyperpigmentation (PIH).

What it does

  • Potent non-cytotoxic antiseptic action against all pathogens — without disrupting the skin's microbiome
  • Reduces inflammation, redness, and discomfort post-procedure
  • Substantially reduces the risk of post-inflammatory hyperpigmentation (PIH) in darker skin types
  • Safe for use around the eyes and in case of accidental ingestion
  • Contains no preservatives, alcohol, or cytotoxic agents

Suitable for post-procedure recovery from

  • Microneedling (Dermapen)
  • Laser resurfacing (ablative and non-ablative)
  • Chemical peels
  • Dermabrasion
  • Waxing

Key Ingredient

Hypochlorous Acid (HOCl) — a molecule naturally produced by the body's immune system to fight infection and reduce inflammation. In GF1, it is delivered in a sterile, stabilised solution that is 80–100 times more effective against pathogens than bleach chlorine, yet entirely safe for skin contact, eye contact, and accidental ingestion.

Specifications

Size: 50ml / 1.69 fl. oz.
Active ingredient: Hypochlorous acid (HOCl)
pH: Physiologically balanced
Preservative-free | Alcohol-free | Fragrance-free
Store between 5–30°C, away from direct sunlight

How to use

Before treatment

Cleanse the skin with a liquid cleanser and pat dry. From approximately 15cm, spritz GF1 onto the face, neck, and around the eyes until the skin is moist. Treatment may begin immediately — no need to wait for the skin to dry.

After treatment

Apply GF1 immediately after the procedure to a clean face (ensure all other products used during treatment have been removed). Allow to air dry naturally — do not wipe off or use a fan or hair dryer, as HOCl is most active while the skin is damp. Reapply every 30 minutes throughout the remainder of the treatment day. If redness persists the following day, continue applying once per hour until it subsides. Once fully healed, resume your regular GF2 routine.

Frequently Asked Questions

What is hypochlorous acid and is it safe?

Hypochlorous acid (HOCl) is a molecule naturally produced by white blood cells as part of the body's immune response to infection and injury. It is non-toxic, non-cytotoxic (it does not damage healthy cells), and safe for use on skin, around the eyes, and in case of accidental ingestion. It is 80–100 times more effective against pathogens than bleach chlorine, without any of the associated toxicity.

How is GF1 different from GF2?

GF1 is specifically formulated for pre- and post-procedure use following aesthetic skin treatments. It is designed for intensive short-term use during the recovery period. GF2 is formulated for daily use as part of a regular skincare routine to combat inflammageing and support ongoing skin rejuvenation. Most patients transition from GF1 back to GF2 once the skin has fully healed.

Can GF1 be used on all skin types?

Yes. GF1 is suitable for all skin types, including sensitive, reactive, and darker skin tones. It is particularly beneficial for Fitzpatrick skin types III–VI, where the risk of post-inflammatory hyperpigmentation (PIH) following aesthetic procedures is significantly higher.

Does GF1 interfere with other post-procedure products?

For best results during the recovery period, Thoclor recommends avoiding other skincare products until the skin has fully healed. This minimises the number of ingredients on compromised skin and reduces the risk of reactions or complications. Do not mix GF1 with or into any other product.

Can GF1 be used on the body as well as the face?

Yes. GF1 can be applied to any area of the body that has undergone an aesthetic procedure, including the neck, décolleté, and body.

Is GF1 available on prescription?

No. GF1 is available without a prescription. However, it is a professional-grade aftercare product and is most commonly recommended by dermatologists, aestheticians, and skincare therapists as part of a post-procedure protocol.

Storage

Store between 5–30°C. Store away from direct sunlight. Keep out of reach of children. Do not use after the expiry date.

Sources

Reviewed October 2026 by Skin by Science.