ACT/IV: Care for Fine, Thinning or Damaged Hair

Discover ACT/IV, also known as ACTIIV, a professional brand specializing in scalp care, hair density and damaged-hair repair. Its botanical-based systems help fine, thinning, fragile or damaged hair look stronger, healthier and fuller.

The Recover and Renew systems combine treatment shampoos, conditioners and complementary care for two distinct concerns: improving the appearance of density and strengthening damaged hair.

About ACT/IV Hair Care

ACT/IV is a professional scalp-focused hair care brand. Its formulas were developed by Jared Reynolds following research in molecular biology, nutraceuticals and botanical ingredients.

The brand follows a system-based approach. Treatment shampoo is applied to the scalp using a specific protocol and followed with conditioner and, when needed, a thickening serum.

Why Choose ACT/IV Products?

• Professional scalp and hair care
• Targeted systems for density, repair and protection
• Formulas featuring botanical extracts and phytonutrients
• Products for fine, thinning or weakened hair
• Systems designed for women and men
• Suitable for natural and colour-treated hair
• Vegan and cruelty-free formulas according to the brand
• Full sizes and travel kits available

Recover: Thickening Care for Thinning Hair

ACT/IV Recover is designed for concerns related to reduced density, fine hair or hair that looks less voluminous. Its products support the scalp environment and help hair appear thicker, stronger and fuller.

Recover is a cosmetic hair care routine. It can improve the appearance, strength and volume of the hair, but it does not replace a medical diagnosis or treatment for alopecia or sudden hair loss.

Recover Thickening Shampoo Treatment for Women

Recover for Women cleanses the scalp while delivering botanical extracts selected to support the appearance of stronger, denser and more voluminous hair.

The formula is intended for women noticing reduced density associated with ageing, hormonal changes, stress, postpartum changes or other factors.

Recover Thickening Shampoo Treatment for Men

Recover for Men cleanses the hair and scalp to remove excess oil and buildup. It helps strengthen the hair fibre and improve the appearance of volume and density.

It can be used on fine or thinning hair and on scalps with buildup that may leave hair looking flat or heavy.

Recover Unisex Thickening Conditioner

Recover Conditioner complements both the women’s and men’s treatment shampoos. Its lightweight formula hydrates, detangles and helps strengthen hair without compromising volume.

• Hydrates fine hair without heaviness
• Makes detangling easier
• Helps reduce breakage
• Improves softness and shine
• Promotes a fuller appearance

Recover for Women vs. Recover for Men

Selection should be based primarily on scalp and hair needs rather than gender alone. Ask a hairstylist or hair-health professional for guidance when needed.

How to Use the ACT/IV Recover System

1. Wet the hair and scalp thoroughly.
2. Apply Recover Treatment Shampoo directly to the scalp.
3. Massage gently to distribute the product and create a lather.
4. Leave it on for five minutes according to the brand’s protocol.
5. Rinse thoroughly.
6. Apply Recover Conditioner from the scalp through the ends.
7. Leave it on for 30 seconds to a few minutes, then rinse.
8. Repeat every other day or as directed on the product.

Consistency is important with cosmetic density routines. Results vary depending on the cause of thinning, scalp condition and regularity of use.

Renew: Repair Care for Damaged Hair

The ACT/IV Renew collection targets hair damaged by colouring, bleaching, chemical services, heated tools or breakage. It helps strengthen the lengths, maintain moisture and improve the hair’s overall appearance.

Renew Healing Shampoo Treatment

Renew Treatment Shampoo cleanses the hair and scalp while delivering botanical extracts, antioxidants, amino acids and phytonutrients. It promotes stronger, softer and healthier-looking hair.

It is particularly suitable for overprocessed, brittle or fragile hair and hair that struggles to retain length because of breakage.

Renew Healing Conditioner

Renew Conditioner complements the treatment shampoo by moisturizing the mid-lengths and ends. It helps detangle, improve softness and reduce the visible signs of breakage without an excessively heavy finish.

Recover vs. Renew: Which ACT/IV System Should You Choose?

If the hair is both thinning and damaged, the two systems may be alternated. Recover remains the main choice for density, while Renew primarily targets damage and breakage.

ACT/IV Thickening Hair Serum

ACT/IV Thickening Hair Serum is a leave-in treatment that adds body to fine or thinning hair. Its lightweight texture coats the fibre to create a fuller appearance from the root while maintaining a natural, flexible finish.

The serum features ingredients such as aloe, caffeine, hydrolyzed quinoa protein and botanical extracts. It is available in a water-based formula and an oil-based formula for textured hair.

Which Thickening Serum Formula Should You Choose?

• Water-based formula: suitable for fine, straight, wavy or easily weighed-down hair.
• Oil-based formula: better suited to textured, curly, very dry hair or hair needing additional nourishment.

How to Use ACT/IV Thickening Serum

Apply one to three pumps from roots to ends on clean, towel-dried hair. Comb through, then air-dry or blow-dry. Begin with a small amount to avoid weighing down fine hair.

Defense SPF 30 Hair, Scalp and Skin Spray

ACT/IV Defense SPF 30 helps protect exposed areas of the scalp, hair and skin from UVA and UVB rays. Its spray format facilitates application along the part, hairline and areas where the hair is thinner.

Apply generously approximately 15 minutes before sun exposure. Reapply as directed, especially after swimming, excessive perspiration or towel drying.

ACT/IV Thickening Beard Oil

ACT/IV Thickening Beard Oil nourishes facial hair and moisturizes the skin to improve beard softness and appearance. Its lightweight finish controls unruly hair and helps the beard look fuller without feeling excessively greasy.

It is available in original scented and fragrance-free versions. Apply a few drops to a clean beard, massage down to the skin and finish with a comb.

ACT/IV Recover Travel-Size Duos

Recover travel duos pair the treatment shampoo and thickening conditioner in compact 80 ml sizes. Separate sets are available with either the women’s or men’s Recover Shampoo.

These formats are convenient for testing the system, maintaining the protocol while travelling or packing the products in carry-on luggage, subject to the carrier’s rules.

When Should You Consult a Professional About Hair Loss?

Gradual density changes may be associated with genetics, stress, hormones, medication, nutrition or hair care practices. Cosmetic care can improve the hair’s appearance and resilience but cannot identify the underlying cause.

Consult a physician or dermatologist when hair loss is sudden, severe, patchy, accompanied by pain or inflammation, or continues despite an appropriate routine.

Frequently Asked Questions About ACT/IV

Are ACT/IV and ACTIIV the same brand?

Yes. Products presented as ACT/IV by some retailers are manufactured by ACTIIV. Recover, Renew, Defense and Thickening Hair Serum refer to the same brand systems.

Which ACT/IV products are best for thinning hair?

Recover is the main system for fine or thinning hair. It combines a women’s or men’s treatment shampoo with the unisex Thickening Conditioner. Thickening Hair Serum can be added to the routine.

Which system should be used for damaged hair?

Renew is intended for brittle, overprocessed or heat- and colour-damaged hair. It includes a restorative treatment shampoo and moisturizing conditioner.

How long should ACT/IV Shampoo be left on?

The official protocol generally recommends leaving the treatment shampoo on for five minutes before rinsing. Review the label and always follow the directions provided with your specific product.

How often should Recover be used?

The brand generally recommends use every other day. Consistent use according to the protocol is important because visible cosmetic changes are gradual.

Do ACT/IV products regrow hair?

ACT/IV is cosmetic hair care designed to support the scalp and improve the appearance of density, volume and strength. Results vary, and the products do not guarantee hair regrowth. Significant or sudden loss should be assessed by a healthcare professional.

Are ACT/IV products suitable for colour-treated hair?

According to the brand, ACTIIV systems can be used on colour-treated, bleached, keratin-treated or chemically processed hair. Renew is especially suitable for hair weakened by these services.

Are ACT/IV products vegan?

ACTIIV presents its formulas as vegan and cruelty-free. Review the individual ingredient list if you have allergies or specific product requirements.

Shop ACT/IV Hair Products in Canada

Explore our selection of ACT/IV products in Canada, including Recover Treatment Shampoos for women and men, Thickening Conditioner, Renew treatments, Thickening Hair Serum, SPF scalp protection, beard oil and travel duos. Build a routine for density, repair and overall hair health.