GF 15% Solution

The Ordinary GF 15% Solution is an age-support serum built on growth factors. The brand's reasoning is straightforward: skin's own growth factor levels fall as you get older, and this formula puts plant-derived biomimetic versions of three of them back on the surface.

Skin types	Normal, dry, combination and oily
Targets	Fine lines and wrinkles, uneven texture, loss of firmness and bounce
Strength	15 percent — biomimetic peptides, plant-sourced
The three factors	IGF · EGF · TGF
Do not pair with	Direct acids · direct vitamin C

What it actually does

• Signals the skin's own repair machinery. That is how The Ordinary describes growth factors working — prompting processes the skin already has rather than adding something foreign.
• IGF for density. Listed as helping regenerate the appearance of skin by making it visibly denser.
• EGF for renewal. Credited with supporting the skin's natural elastin and the renewal process itself.
• TGF for collagen. Described as improving skin's integrity by supporting natural collagen.
• Biomimetic and plant-based. The peptides mimic the three growth factors rather than being derived from them, and the concentration is 15 percent.
• What the clinical testing reported. On 42 people using the product twice a day: it helped minimise and repair visible skin damage within two weeks, visibly repaired wrinkles over the same two weeks, and firmed the face and neck by week four. Brand-cited results — individual outcomes vary.

How to use

1. A few drops onto the face, morning and evening.
2. Keep it away from direct acids and direct vitamin C. The Ordinary lists both as contraindications — use them in a separate routine or on alternate days.

Is it right for you?

Questions

Why can't I use it with vitamin C or acids?

The Ordinary lists direct acids and direct vitamin C as contraindications for this formula. Separate them — one in the morning and the other at night, or on alternate days.

Are these real growth factors?

They are biomimetic peptides derived from plants, designed to imitate EGF, TGF and IGF, at a 15 percent concentration. The brand is explicit about that distinction.

How quickly does it work?

In the brand's testing on 42 people using it twice daily, the two-week marks were visible damage and wrinkles, with firming of the face and neck recorded at four weeks.

Can I use it on my neck?

The firming result in the brand's testing covered the face and the neck together, so the neck is within what the product was tested on.

Delivery, payment and returns?

Delivery takes 3 to 21 working days, depending on availability. Payment is by credit card, debit card, Instapay or mobile wallet — no cash on delivery. Returns are for defective, damaged or expired items only, reported within 1 day of delivery, refunded to the original payment method within 15–30 days.